An automatic gypsum board forming apparatus and method

Abstract

The present application relates to the technical field of gypsum board forming, in particular to a kind of automatic forming equipment of gypsum board and method thereof, the present application includes base, forming conveyor belt, upper cover paper and lower cover paper, the base top is symmetrically provided with driving pressure wheel and driven feed wheel, upper cover paper and lower cover paper all pass between driving pressure wheel and driven feed wheel;The main shaft of the forming conveyor belt is the only power source of whole equipment.The present application uses main shaft as the only power source, simultaneously drives forming conveyor belt, same speed feeding mechanism, self-adapting slurry laying opening adjusting mechanism and bubble-punching type defoaming mechanism action, without additional independent power source, not only simplify the equipment structure, reduce manufacturing cost and energy consumption, also ensure that the speed of each mechanism is completely synchronous with main shaft, avoid cover paper stretching, tearing, misplacement, slurry overflow, core lack and other forming defects from the root, improve equipment running stability.

Description

Technical Field

[0001] This invention relates to the field of gypsum board molding technology, specifically to an automatic gypsum board molding equipment and method. Background Technology

[0002] Gypsum board, as a high-performance, lightweight, fire-resistant, and environmentally friendly material, is widely used in modern building decoration projects. With the increasing level of industrialization in the construction industry, the market has placed higher demands on gypsum board production efficiency and finished product quality. As a core component of energy-saving building material production equipment, the automated gypsum board forming process directly affects the flatness of the gypsum board, the internal structural strength, and the overall energy consumption of the production line through the coordinated level of its feeding, slurry spreading, and defoaming processes.

[0003] In existing automated gypsum board molding production, the feeding of gypsum slurry, the elimination of air bubbles on the slurry surface, and the traction of the facing paper are usually driven by separate power systems. To achieve synchronous production, the industry typically uses frequency converters or electronic synchronous controllers to perform logical-level speed matching of each drive motor, supplemented by various sensors to monitor linear speed fluctuations in real time.

[0004] However, the aforementioned existing technologies face severe challenges in practical applications. Due to the lack of rigid physical linkage feedback between various production mechanisms, the sensor acquisition and electrical control compensation system often suffers from unavoidable response lag when the production line experiences frequent speed adjustments or instantaneous load fluctuations. Simultaneously, because the slurry flow rate and defoaming frequency cannot dynamically and instantaneously adapt to the line speed, quality problems such as slurry overflow, material shortage, or core voids frequently occur, increasing material waste and limiting the overall energy efficiency of the production line. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic gypsum board forming device and method to solve the problems mentioned in the background art.

[0006] The objective of this invention can be achieved through the following technical solutions: An automatic gypsum board forming device and method thereof, preferably comprising a base, a forming conveyor belt, an upper protective paper and a lower protective paper, wherein an active pressing wheel and a driven feeding wheel are symmetrically arranged on the top of the base, and both the upper and lower protective papers pass between the active pressing wheel and the driven feeding wheel; The main shaft of the forming conveyor belt is the only power source for the entire equipment, and a spreading roller located above the upper protective paper is also rotatably installed on the top of the base; The diameters of both the active pressure roller and the driven feeding roller are the same as the diameter of the main shaft; The main shaft is rigidly linked to a synchronous feeding mechanism, an adaptive pulping opening adjustment mechanism, and a bubble-popping defoaming mechanism; the synchronous feeding mechanism is used to synchronously pull the face paper, the adaptive pulping opening adjustment mechanism is used to adaptively adjust the pulping flow rate according to the production line speed, and the bubble-popping defoaming mechanism is used to vertically puncture the air bubbles in the pulp. The same-speed feeding mechanism, the adaptive slurry spreading opening adjustment mechanism, and the bubble-popping defoaming mechanism are all driven by the main shaft and dynamically adapted to the rotational speed of the main shaft in real time.

[0007] Preferably, the adaptive slurry spreading opening adjustment mechanism includes a slurry equalization box set on the top of the base, a slurry spreading opening opened on the side of the slurry equalization box facing the forming conveyor belt, a baffle plate is slidably and vertically arranged inside the slurry spreading opening, a slurry equalization threshold is set at the bottom of the slurry equalization box, and the input end of the slurry equalization box is connected to a slurry pump through a pipeline.

[0008] Preferably, the adaptive slurry spreading opening adjustment mechanism further includes an extension rod symmetrically fixedly connected to the main shaft end, one end of the extension rod is slidably sleeved with a sleeve rod, one end of the sleeve rod is rotatably sleeved with an L-shaped transmission rod, and one end of the L-shaped transmission rod is fixedly connected with a transmission rack. One end of the homogenizing tank is symmetrically hinged with a transmission gear that meshes with a transmission rack. The hinged end of the transmission gear is fixedly connected to a first lifting rod. The other end of the first lifting rod is hinged to a second lifting rod. The other end of the second lifting rod is hinged to the top of the baffle plate. The bottom of the homogenizing tank is fixedly connected to a guide slide rod, and the transmission rack is slidably connected to the guide slide rod.

[0009] Preferably, the adaptive slurry spreading opening adjustment mechanism further includes an adjustment rod symmetrically hinged to the end of the extension rod, the end of the adjustment rod is provided with a counterweight ball, the middle section of the adjustment rod is hinged with a traction rod, and the other end of the traction rod is hinged to the sleeve rod; A return spring is sleeved on the outer periphery of the extension rod, and the return spring is installed between the sleeve and the end of the extension rod.

[0010] Preferably, the bubble-popping defoaming mechanism includes a crankshaft rotatably connected to the top of the base, cranks facing opposite directions symmetrically arranged on the crankshaft, connecting rods hinged to the shaft ends of the cranks, a pair of bubble-popping slide rods symmetrically fixed to the top of the base, bubble-popping sliders slidably connected to the two bubble-popping slide rods, and the bottom of the connecting rods hinged to the bubble-popping sliders.

[0011] Preferably, the bubble-popping defoaming mechanism further includes a plurality of equipment mounting rods disposed at one end of the bubble-popping slider, the equipment mounting rods having buffer grooves, and a plurality of bubble-popping top rods being evenly disposed on the equipment mounting rods, the bubble-popping top rods passing through the equipment mounting rods and sliding therewith; A buffer plate is fixedly connected to the middle section of the bubble-popping rod. The buffer plate is set inside the buffer channel, and buffer springs are fixedly connected to both its upper and lower ends. The equipment mounting rods on the two bubble-popping sliders are installed alternately.

[0012] Preferably, the bubble-popping defoaming mechanism further includes a first bevel gear fixedly connected to the end of the crankshaft, a second bevel gear fixedly connected to the end of the main shaft, a bubble-popping transmission rod rotatably connected to the top of the base, and third bevel gears respectively provided at both ends of the bubble-popping transmission rod. One set of third bevel gears meshes with the second bevel gear, and another set of third bevel gears meshes with the first bevel gear on the crankshaft.

[0013] Preferably, the same-speed feeding mechanism includes a first synchronous gear fixedly connected to the shaft end of the driving pressure wheel and a second synchronous gear fixedly connected to the shaft end of the driven feeding wheel, wherein the first synchronous gear meshes with the second synchronous gear; Two driven feed wheels are fixedly connected by a synchronizing rod. One driven feed wheel has a first speed-matching wheel fixedly connected to its shaft end, and a second speed-matching wheel fixedly connected to its main shaft end. The first and second speed-matching wheels are fitted with speed-matching belts around their outer circumferences.

[0014] Preferably, the same-speed feeding mechanism further includes a gantry frame fixedly connected to the top of the base, a guide groove is provided on the top of the gantry frame, a guide slider is slidably arranged inside the guide groove, and a synchronous connecting frame that is rotatably connected to the active pressing wheel is also provided inside the gantry frame; The top of the synchronous connecting frame is hinged with a drive rod, the top of which is hinged to the guide slider. The top of the gantry frame is rotatably connected with a pressure adjustment rod, which has threaded grooves with opposite directions of rotation and is threaded to the two guide sliders respectively.

[0015] A method for using an automatic gypsum board forming device, comprising the following steps: S1: By rotating the pressure adjustment rod, the guide sliders are driven to move closer to each other, so that the active pressure wheel moves down and cooperates with the driven feeding wheel to clamp the protective paper and establish a feeding reference. S2: The rotation of the main shaft drives the extension rod to rotate. The counterweight ball drives the sleeve rod to move under the action of centrifugal force. The baffle plate is driven to move up through the transmission rack, so that the opening of the slurry outlet is adaptively adjusted with the rotation speed of the main shaft. After the slurry is homogenized by the slurry equalization plate, it is laid on the lower protective paper. S3: The main shaft drives the crankshaft to rotate through the second bevel gear, causing the bubble-punching rod to reciprocate in the vertical direction, thus performing high-frequency puncture and defoaming on the slurry; S4: The main shaft drives the driven feed wheel to rotate via a belt of the same speed, and the equal diameter structure ensures that the linear speed of the face paper feeding is synchronized with the linear speed of the forming conveyor belt.

[0016] The beneficial effects of this invention are: 1. This invention uses the main shaft as the sole power source to synchronously drive the forming conveyor belt, the feeding mechanism at the same speed, the adaptive pulping opening adjustment mechanism, and the bubble-popping defoaming mechanism. It eliminates the need for an additional independent power source, which not only simplifies the equipment structure and reduces manufacturing costs and energy consumption, but also ensures that the rotation speed of each mechanism is completely synchronized with the main shaft. This fundamentally avoids forming defects such as stretching, tearing, and misalignment of the face paper, pulp overflow, and missing cores, thereby improving the stability of equipment operation.

[0017] 2. This invention achieves dynamic adjustment of slurry supply flow rate with the main shaft by rigidly linking the adaptive slurry opening adjustment mechanism with the main shaft and driving the baffle plate to rise and fall by centrifugal force. When the linear speed increases, the slurry opening is automatically increased and the slurry supply flow rate is increased; when the linear speed decreases, the opening is automatically decreased and the flow rate is reduced, thus avoiding problems such as slurry overflow and material shortage.

[0018] 3. The present invention uses a bubble-popping defoaming mechanism that is synchronously linked with the main shaft to drive two bubble-popping sliders to rise and fall alternately, thereby driving the bubble-popping top rod to achieve continuous and uninterrupted defoaming, reducing the internal pores of the gypsum board and preventing the board from becoming hollow or warped. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a top view of the overall structure of the present invention; Figure 3 yes Figure 2 A cross-sectional view along the AA direction; Figure 4 This is a schematic diagram of the overall structure of the gantry frame in this invention; Figure 5 This is an exploded view of the internal structure of the slurry-laying port in this invention; Figure 6 This is a schematic diagram of the overall structure of the spindle in this invention; Figure 7 This is a schematic diagram of the overall structure of the sleeve rod in this invention; Figure 8 This is a schematic diagram of the overall structure of the crankshaft in this invention; Figure 9 This is a schematic diagram of the overall structure of the bubble-popping rod in this invention; Figure 10 This is a schematic diagram showing the connection relationship between the first and second gears with the same speed in this invention.

[0020] The attached diagram is labeled as follows: 1. Base; 2. Forming conveyor belt; 3. Upper protective paper; 4. Lower protective paper; 5. Driving pressure roller; 6. Driven feeding roller; 7. Main shaft; 8. Slurry equalization box; 9. Slurry spreading port; 10. Baffle plate; 11. Slurry equalization threshold; 12. Extension rod; 13. Sleeve rod; 14. L-shaped transmission rod; 15. Transmission rack; 16. Transmission gear; 17. First lifting rod; 18. Second lifting rod; 19. Guide slide rod; 20. Adjusting rod; 21. Counterweight ball; 22. Traction rod; 23. Return spring; 24. Crankshaft; 25. Crank; 26. Connecting rod; 7. Bubble-popping slide bar; 28. Bubble-popping slider; 29. ​​Equipment mounting rod; 30. Buffer channel; 31. Bubble-popping top rod; 32. Buffer plate; 33. Buffer spring; 34. First bevel gear; 35. Second bevel gear; 36. Bubble-popping transmission rod; 37. Third bevel gear; 38. First synchronous gear; 39. Second synchronous gear; 40. Synchronizing rod; 41. First speed-matching pulley; 42. Second speed-matching pulley; 43. Speed-matching belt; 44. Gantry frame; 45. Guide chute; 46. Guide slider; 47. Synchronizing connecting frame; 48. Drive rod; 49. Material pressing adjustment rod; 50. Spreading roller. Detailed Implementation

[0021] 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.

[0022] An automatic gypsum board forming device and method are disclosed, primarily targeting gypsum board forming equipment used in the field of energy-saving building material production. This device is adapted to the automated, high-quality forming requirements of industrial-scale gypsum board production. It solves the problems of traditional gypsum board forming equipment, such as independent multi-power source drive, lagging electrical control synchronization response, synchronization failure under extreme environments, inability to dynamically adapt slurry supply and defoaming to line speed, high material loss, and low overall line energy efficiency, through the coordinated operation of a single, homogeneous power source on the main shaft, a synchronous feeding mechanism, an adaptive slurry spreading opening adjustment mechanism, a bubble-popping defoaming mechanism, and a forming conveyor belt. Belonging to the field of gypsum board forming technology, this automatic gypsum board forming device and method achieve automated continuous production, dynamic adaptation of slurry supply and defoaming to line speed, recycling and reuse of unformed slurry, and precise control of gypsum board quality through a combination of full-process physical rigid linkage and adaptive adjustment. This meets the stable requirements of the energy-saving building material production field for automated and efficient gypsum board forming equipment, improved product quality, increased raw material utilization, and optimized overall line energy efficiency.

[0023] An automatic gypsum board forming equipment, such as Figures 1-10As shown, it includes a base 1, a forming conveyor belt 2, an upper protective paper 3, and a lower protective paper 4. The top of the base 1 is symmetrically equipped with an active pressure roller 5 and a driven feeding roller 6. Both the upper protective paper 3 and the lower protective paper 4 pass between the active pressure roller 5 and the driven feeding roller 6. The roll ends of the upper protective paper 3 and the lower protective paper 4 are respectively connected to an external unpowered unwinding device, which is a passive unwinding mechanism without independent drive. The main shaft 7 of the forming conveyor belt 2 is the only power source for the entire equipment, and a spreading roller 50 located above the upper protective paper 3 is also rotatably installed on the top of the base 1; The diameters of both the active pressure roller 5 and the driven feeding roller 6 are the same as the diameter of the main shaft 7; The main shaft 7 is rigidly linked to a feeding mechanism with the same speed for synchronously pulling the face paper, an adaptive pulping opening adjustment mechanism for adaptively adjusting the pulp flow rate according to the production line speed, and a bubble-popping defoaming mechanism for vertically puncturing the air bubbles in the pulp. The same-speed feeding mechanism, the adaptive slurry spreading opening adjustment mechanism, and the bubble-popping defoaming mechanism are all driven by the main shaft 7 and dynamically adapted to the rotation speed of the main shaft 7 in real time. The adaptive slurry spreading opening adjustment mechanism includes a slurry equalization box 8 set on the top of the base 1. The slurry equalization box 8 has a slurry spreading port 9 on the side facing the forming conveyor belt 2. A baffle plate 10 is slidably installed inside the slurry spreading port 9. A slurry equalization threshold 11 is set at the bottom of the slurry equalization box 8. The input end of the slurry equalization box 8 is connected to a slurry pump through a pipeline. Furthermore, the adaptive slurry opening adjustment mechanism also includes an extension rod 12 symmetrically fixedly connected to the end of the main shaft 7. One end of the extension rod 12 is slidably sleeved with a sleeve rod 13, and one end of the sleeve rod 13 is rotatably sleeved with an L-shaped transmission rod 14. One end of the L-shaped transmission rod 14 is fixedly connected with a transmission rack 15. One end of the equalization tank 8 is symmetrically hinged with a transmission gear 16 that meshes with the transmission rack 15. The hinged end of the transmission gear 16 is fixedly connected to a first lifting rod 17. The other end of the first lifting rod 17 is hinged to a second lifting rod 18. The other end of the second lifting rod 18 is hinged to the top of the baffle plate 10. The bottom of the homogenizing tank 8 is fixedly connected to a guide slide rod 19, and the transmission rack 15 is slidably connected to the guide slide rod 19. Furthermore, the adaptive slurry opening adjustment mechanism also includes an adjustment rod 20 symmetrically hinged to the end of the extension rod 12. The end of the adjustment rod 20 is provided with a counterweight ball 21, and the middle section of the adjustment rod 20 is hinged with a traction rod 22. The other end of the traction rod 22 is hinged to the sleeve rod 13. A return spring 23 is sleeved on the outer periphery of the extension rod 12, and the return spring 23 is installed between the sleeve rod 13 and the end of the extension rod 12. Furthermore, the bubble-popping defoaming mechanism includes a crankshaft 24 rotatably connected to the top of the base 1, cranks 25 symmetrically arranged on the crankshaft 24 facing opposite directions, a connecting rod 26 hinged to the shaft end of the cranks 25, a pair of bubble-popping slide rods 27 symmetrically fixedly connected to the top of the base 1, bubble-popping sliders 28 slidably connected to the two bubble-popping slide rods 27, and the bottom of the connecting rod 26 is hinged to the bubble-popping sliders 28. Furthermore, the bubble-popping defoaming mechanism also includes a plurality of equipment mounting rods 29 disposed at one end of the bubble-popping slider 28. The equipment mounting rods 29 are provided with buffer grooves 30, and a plurality of bubble-popping top rods 31 are evenly disposed on the equipment mounting rods 29. The bubble-popping top rods 31 pass through the equipment mounting rods 29 and slide therewith. The lower end of the bubble-popping top rods 31 is a rounded cone shape. A buffer plate 32 is fixedly connected to the middle section of the bubble-popping rod 31. The buffer plate 32 is set inside the buffer channel 30, and buffer springs 33 are fixedly connected to both its upper and lower ends. The equipment mounting rods 29 on the two bubble-popping sliders 28 that are set opposite to each other are installed in an alternating manner. Furthermore, the bubble-popping defoaming mechanism also includes a first bevel gear 34 fixedly connected to the end of the crankshaft 24, a second bevel gear 35 fixedly connected to the end of the main shaft 7, a bubble-popping transmission rod 36 rotatably connected to the top of the base 1, and third bevel gears 37 respectively provided at both ends of the bubble-popping transmission rod 36. One set of third bevel gears 37 meshes with the second bevel gear 35, and another set of third bevel gears 37 meshes with the first bevel gear 34 on the crankshaft 24. Furthermore, the same-speed feeding mechanism includes a first synchronous gear 38 fixedly connected to the shaft end of the active pressing wheel 5 and a second synchronous gear 39 fixedly connected to the shaft end of the driven feeding wheel 6, with the first synchronous gear 38 meshing with the second synchronous gear 39; Two driven feeding wheels 6 are fixedly connected by a synchronizing rod 40. One driven feeding wheel 6 has a first speed wheel 41 fixedly connected to its shaft end, and a second speed wheel 42 fixedly connected to its main shaft 7 end. A speed belt 43 is fitted around the outer periphery of the first speed wheel 41 and the second speed wheel 42. Furthermore, the same-speed feeding mechanism also includes a gantry frame 44 fixedly connected to the top of the base 1. A guide groove 45 is provided on the top of the gantry frame 44, and a guide slider 46 is slidably arranged inside the guide groove 45. A synchronous connecting frame 47 that is rotatably connected to the active pressing wheel 5 is also provided inside the gantry frame 44. The top of the synchronous connecting frame 47 is hinged to a drive rod 48, the top of the drive rod 48 is hinged to a guide slider 46, and the top of the gantry frame 44 is rotatably connected to a pressure adjusting rod 49, which has threaded grooves with opposite directions of rotation and is threaded to two guide sliders 46 respectively.

[0024] In use, the rolls of the upper protective paper (3) and the lower protective paper (4) are pre-installed on the external unpowered unwinding device. The free end of the protective paper is pulled open and passes through the clamping gap between the active pressure wheel (5) and the driven feeding wheel (6). The unpowered unwinding device is only used to carry the protective paper roll and provide a constant passive unwinding tension. It has no independent driving power source. The unwinding speed of the protective paper is completely determined by the traction linear speed of the active pressure wheel (5) and the driven feeding wheel (6). The upper protective paper 3 and the lower protective paper 4 are passed between the active pressure roller 5 and the driven feeding roller 6. The pressure adjustment rod 49 at the top of the gantry frame 44 is rotated, and through the oppositely oriented threaded grooves on its surface, the two guide sliders 46 are driven to slide along the guide groove 45. The guide sliders 46 pull the synchronous connecting frame 47 up and down through the drive rod 48, and synchronously adjust the height of the active pressure roller 5 so that it tightly clamps the protective paper with the driven feeding roller 6, ensuring that the clamping force is moderate. After the equipment is started, the main shaft 7 rotates, driving the second synchronous wheel 42 at its end to rotate. The second synchronous wheel 42 drives the first synchronous wheel 41 to rotate synchronously through the synchronous belt 43. The first synchronous wheel 41 drives the driven feeding wheel 6 fixed to it to rotate. The two driven feeding wheels 6 are linked by the synchronous rod 40 to achieve synchronous rotation. The second synchronous gear 39 at the shaft end of the driven feeding wheel 6 meshes with the first synchronous gear 38 at the shaft end of the active pressing wheel 5, driving the active pressing wheel 5 and the driven feeding wheel 6 to rotate synchronously in opposite directions, smoothly pulling the upper protective paper 3 and the lower protective paper 4 to move, ensuring that the feeding speed is consistent with the speed of the forming conveyor belt 2 and the main shaft 7. When the equipment is stopped, the main shaft 7 stops rotating, the second synchronous wheel 42, the first synchronous wheel 41 and the synchronous belt 43 stop transmission synchronously, the active pressing wheel 5 and the driven feeding wheel 6 stop rotating, and the feeding operation is completed. At the same time, the main shaft 7 drives the active pressing wheel 5 and the driven feeding wheel 6 to rotate in opposite directions, pulling the upper protective paper 3 and the lower protective paper 4 to move at the same speed as the forming conveyor belt 2, ensuring that the protective paper does not slip or misalign. The adaptive grouting opening adjustment mechanism operates synchronously, starts the external grouting pump, maintains constant speed operation, and continuously delivers gypsum grout to the grouting tank 8. The grout accumulates in the grouting tank 8, overflows the grouting threshold 11, and gathers on the inside of the grouting opening 9. When the main shaft 7 rotates, the extension rod 12 drives the adjusting rod 20 to rotate around the hinge point. Under the action of centrifugal force, the counterweight ball 21 moves away from the axis of the extension rod 12, causing the adjusting rod 20 to deflect. The deflection of the adjusting rod 20 pulls the sleeve rod 13 along the extension rod 12 towards the main shaft 7 through the traction rod 22, compressing the return spring 23. Then, by sliding the sleeve rod 13 along the length of the extension rod 12, the L-shaped transmission rod 14 is driven to make linear motion, which pulls the transmission rack 15 to slide along the guide slide rod 19. The transmission rack 15 meshes with the transmission gear 16, driving the transmission gear 16 to rotate. When the transmission gear 16 rotates, it drives the first lifting rod 17 and the second lifting rod 18 to deflect and push the baffle plate 10 to rise and fall, opening the slurry laying port 9. Then, the gypsum slurry is laid on the lower protective paper 4 through the slurry laying port 9. The higher the spindle speed of the main shaft 7, the greater the centrifugal force of the counterweight ball 21, the longer the sliding distance of the sleeve rod 13, the higher the baffle plate 10 rises, and the larger the opening of the slurry outlet 9; when the speed decreases, the centrifugal force decreases, the return spring 23 pushes the sleeve rod 13 to return to its original position, the baffle plate 10 descends, and the opening of the slurry outlet 9 decreases. When the equipment stops, the main shaft 7 stops rotating, the centrifugal force of the counterweight ball 21 disappears, the return spring 23 rebounds and pushes the sleeve rod 13 to fully reset, driving the baffle plate 10 to descend and close the slurry outlet 9 to prevent slurry leakage; The bubble-punching defoaming mechanism simultaneously punctures and defoams the pulp to ensure that the pulp is free of bubbles. Specifically, when the main shaft 7 rotates, it drives the second bevel gear 35 to rotate. The second bevel gear 35 meshes with the first bevel gear 34 and the third bevel gear 37, respectively, driving the crankshaft 24 and the bubble-punching transmission rod 36 to rotate synchronously, ensuring that the speeds at both ends of the crankshaft 24 are consistent. When the crankshaft 24 rotates, it drives the two symmetrical cranks 25 on it to rotate synchronously. The cranks 25 drive the connecting rod 26 to reciprocate, pulling the bubble-punching slider 28 to rise and fall vertically along the bubble-punching slide rod 27. The bubble-punching slider 28 drives the bottom bubble-punching top rod 31 to rise and fall synchronously. When the bubble-punching top rod 31 descends and contacts the pulp surface, its rounded conical tip punctures the bubbles. The buffer spring 33 and the buffer plate 32 buffer the impact force to avoid damaging the face paper 4. The two bubble-punching sliders 28 rise and fall alternately to achieve continuous and uninterrupted defoaming and reduce defoaming blind spots. The bubble-punching frequency is synchronized with the speed of the main shaft 7, adapting to the production line speed and ensuring uniform defoaming effect. After defoaming, the upper protective paper 3 covers the slurry and moves with the forming conveyor belt 2 to the bottom of the spreading roller 50. The spreading roller 50 applies uniform pressure to the upper protective paper 3 to tightly adhere the protective paper to the slurry and flatten the surface of the slurry. Adjusting the speed of the variable frequency motor allows for synchronous adjustment of the speed of the main shaft 7 and each linkage mechanism, adapting to different production specifications. When the machine stops, the main shaft 7 stops rotating, each mechanism stops operating synchronously, the baffle plate 10 closes the slurry outlet 9 to prevent slurry leakage, completes the defoaming operation, and completes one molding cycle.

[0025] A method for using an automatic gypsum board forming device, comprising the following steps: S1: By rotating the pressure adjustment rod 49, the guide sliders 46 are driven to move closer to each other, so that the active pressure wheel 5 moves down and cooperates with the driven feeding wheel 6 to clamp the protective paper and establish a feeding reference. S2: The rotation of the main shaft 7 drives the extension rod 12 to rotate. The counterweight ball 21 drives the sleeve rod 13 to move under the action of centrifugal force. The baffle plate 10 is driven to move upward through the transmission rack 15, so that the opening of the slurry outlet 9 is adaptively adjusted with the rotation speed of the main shaft 7. After the slurry is homogenized by the slurry equalization plate 11, it is laid on the lower protective paper 4. S3: The main shaft 7 drives the crankshaft 24 to rotate through the second bevel gear 35, causing the bubble-punching rod 31 to reciprocate in the vertical direction, thereby performing high-frequency puncture and defoaming on the slurry; S4: The main shaft 7 drives the driven feed wheel 6 to rotate through the same speed belt 43, and the equal diameter structure ensures that the linear speed of the face paper feeding is synchronized with the linear speed of the forming conveyor belt 2.

[0026] The working principle of the automatic gypsum board forming equipment and method provided by this invention is as follows: First, the operator passes the upper protective paper 3 and the lower protective paper 4 between the active pressure roller 5 and the driven feeding roller 6, respectively. The operator then rotates the pressure adjustment rod 49, whose oppositely rotating threaded grooves drive two guide sliders 46 to slide in opposite directions along the guide grooves 45 of the gantry frame 44. The guide sliders 46 drive the synchronous connecting frame 47 to move up and down via the drive rod 48. The synchronous connecting frame 47 is rotatably connected to the active pressure roller 5, thereby adjusting the distance between the active pressure roller 5 and the driven feeding roller 6. This ensures that the active pressure roller 5 and the driven feeding roller 6 tightly clamp the protective paper, ensuring appropriate clamping force that neither damages the protective paper nor causes slippage or deviation during transport. Then, the forming conveyor belt 2 is started to drive the main shaft 7 to rotate around its own axis. When the main shaft 7 rotates, the second synchronous wheel 42 at its end drives the first synchronous wheel 41 to rotate synchronously through the synchronous belt 43. The first synchronous wheel 41 is fixed to the shaft end of the driven feeding wheel 6, thereby driving the driven feeding wheel 6 to rotate. The two driven feeding wheels 6 are fixedly connected by the synchronous rod 40 to realize the synchronous rotation of the two driven feeding wheels 6. The second synchronous gear 39 at the shaft end of the driven feeding wheel 6 meshes with the first synchronous gear 38 at the shaft end of the active pressing wheel 5, driving the active pressing wheel 5 and the driven feeding wheel 6 to rotate synchronously in opposite directions, ensuring that the protective paper is pulled smoothly. At the same time, the main shaft 7 drives the feeding mechanism to move at the same speed. Since the diameter of the active pressing wheel 5 and the driven feeding wheel 6 is the same as that of the main shaft 7, and they are linked with the main shaft 7 through a synchronous transmission structure, the three rotate synchronously and their linear speeds are perfectly matched. The active pressing wheel 5 and the driven feeding wheel 6 rotate relative to each other, pulling the upper protective paper 3 and the lower protective paper 4 to move synchronously. The feeding speed of the protective paper is the same as the running speed of the forming conveyor belt 2, thereby effectively avoiding defects such as stretching, tearing, and misalignment of the protective paper. Since the facing paper roll is mounted on a non-powered unwinding device and there is no additional unwinding drive mechanism, the unwinding action of the facing paper is completely driven by the same speed feeding mechanism driven by the main shaft, which completely eliminates the electrical control synchronization error between the unwinding power and the feeding line speed. This avoids problems such as tension fluctuation, stretching deformation, and wrinkle misalignment of the facing paper caused by speed mismatch from the source of unwinding, and further improves the forming accuracy of gypsum board. While the facing paper is being conveyed, the adaptive slurry spreading opening adjustment mechanism starts working, and the external slurry pump runs at a constant speed, continuously conveying gypsum slurry to the slurry equalization tank 8. The slurry accumulates in the slurry equalization tank 8, gradually overflowing the slurry equalization threshold 11 and gathering inside the slurry spreading opening 9. When the main shaft 7 rotates, it drives the extension rods 12 at both ends to rotate synchronously. The extension rods 12 drive the adjusting rod 20 to rotate around the hinge point. Under the action of centrifugal force, the counterweight ball 21 moves away from the axis of the extension rod 12, causing the adjusting rod 20 to deflect. This, in turn, pulls the sleeve rod 13 along the extension rod 12 towards the main shaft 7 through the traction rod 22, compressing the return spring 23. The sliding of the sleeve rod 13 drives the L-shaped transmission rod 14 to move linearly. The L-shaped transmission rod 14 pulls the transmission rack 15 to slide smoothly along the guide slide rod 19. The transmission rack 15 meshes with the transmission gear 16, driving the transmission gear 16 to rotate. The transmission gear 16, through the eccentrically connected first lifting rod 17 and second lifting rod 18, pushes the baffle plate 10 to rise and fall along the slide rail of the slurry laying port 9, adjusting the flow opening of the slurry laying port 9. The higher the speed of the main shaft 7, the greater the centrifugal force of the counterweight ball 21, the higher the baffle plate 10 rises, the larger the opening of the slurry laying port 9, and the greater the slurry output flow. Conversely, the lower the speed, the less the flow. This achieves adaptive matching between the slurry supply flow and the production line speed, avoiding problems such as slurry overflow, material accumulation, and missing cores. The slurry flows out smoothly from the slurry laying port 9 and is laid on the lower protective paper 4. After the slurry is laid, the bubble-popping defoaming mechanism simultaneously performs defoaming operations. The main shaft 7 drives the second bevel gear 35 to rotate, and the second bevel gear 35 meshes with the first bevel gear 34 and the third bevel gear 37 respectively, driving the crankshaft 24 and the bubble-popping transmission rod 36 to rotate synchronously, ensuring that the speeds at both ends of the crankshaft 24 are consistent. When the crankshaft 24 rotates, the two cranks 25 symmetrically arranged on it and facing opposite directions rotate synchronously, driving the connecting rod 26 to reciprocate. The connecting rod 26 pulls the bubble-popping slider 28 to rise and fall vertically along the bubble-popping slide rod 27. The bubble-popping top rod 31 at the bottom of the bubble-popping slider 28 rises and falls synchronously. When the bubble-popping top rod 31 descends to contact the slurry surface, the rounded conical tip punctures the bubble, and the gas inside the bubble is discharged. During this process, the buffer plate 32 and buffer spring 33 between the bubble-punching slider 28 and the bubble-punching top rod 31 play a role. The buffer spring 33 can produce a slight rebound deformation to buffer the impact force of the bubble-punching top rod 31 on the slurry, avoid excessive bubble-punching force that would cause the slurry to become disordered, and at the same time ensure that the bubble-punching top rod 31 can fully contact the slurry without damaging the underlying facing paper 4. The two bubble-punching sliders 28 rise and fall alternately to achieve continuous and uninterrupted defoaming, further reducing the residual pores inside the slurry and preventing defects such as hollowing and warping of the gypsum board. After defoaming, the upper protective paper 3 covers the gypsum slurry and moves synchronously with the forming conveyor belt 2 to the bottom of the spreading roller 50. The spreading roller 50 applies uniform pressure to the upper protective paper 3, tightly adhering the upper protective paper 3 to the middle gypsum slurry, while flattening the slurry surface to eliminate slight protrusions and ensure the flatness of the gypsum board surface. When it is necessary to adjust the production specifications of gypsum board or adapt to changes in the initial setting state of gypsum, the operator only needs to adjust the speed of the main shaft 7 via the variable frequency motor. The running speed of the forming conveyor belt 2 changes synchronously. The feeding mechanism, the adaptive slurry spreading opening adjustment mechanism, and the bubble-popping defoaming mechanism also adapt synchronously to the speed change, without the need to adjust each mechanism separately, making the operation convenient and efficient. When the equipment stops, the main shaft 7 stops rotating, the centrifugal force of the counterweight ball 21 disappears, the return spring 23 rebounds, pushing the sleeve rod 13 to reset, driving the baffle plate 10 to descend, closing the slurry spreading opening 9, and preventing slurry leakage; the bubble-popping defoaming mechanism also stops operating, completing one forming cycle.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. An automatic gypsum board forming equipment, characterized in that: It includes a base (1), a forming conveyor belt (2), an upper protective paper (3) and a lower protective paper (4). The base (1) is symmetrically provided with an active pressing wheel (5) and a driven feeding wheel (6) at the top. The upper protective paper (3) and the lower protective paper (4) both pass between the active pressing wheel (5) and the driven feeding wheel (6). The main shaft (7) of the forming conveyor belt (2) is the only power source for the entire equipment, and a spreading roller (50) located above the upper protective paper (3) is also rotatably installed on the top of the base (1); The diameters of both the active pressing wheel (5) and the driven feeding wheel (6) are the same as the diameter of the main shaft (7); The main shaft (7) is rigidly linked to a feeding mechanism with the same speed for synchronously pulling the face paper, an adaptive pulping opening adjustment mechanism for adaptively adjusting the pulp flow rate according to the production line speed, and a bubble-popping defoaming mechanism for vertically puncturing the air bubbles in the pulp. The same-speed feeding mechanism, the adaptive slurry spreading opening adjustment mechanism and the bubble-popping defoaming mechanism are all driven by the main shaft (7) and dynamically adapted to the rotation speed of the main shaft (7) in real time.

2. The automatic gypsum board forming equipment according to claim 1, characterized in that: The adaptive slurry spreading opening adjustment mechanism includes a slurry equalization box (8) set on the top of the base (1). The slurry equalization box (8) has a slurry spreading port (9) on the side facing the forming conveyor belt (2). A baffle plate (10) is installed inside the slurry spreading port (9) and is installed at the bottom of the slurry equalization box (8). The input end of the slurry equalization box (8) is connected to a slurry pump through a pipeline.

3. The automatic gypsum board forming equipment according to claim 2, characterized in that: The adaptive slurry opening adjustment mechanism also includes an extension rod (12) symmetrically fixedly connected to the end of the main shaft (7). One end of the extension rod (12) is slidably sleeved with a sleeve rod (13), and one end of the sleeve rod (13) is rotatably sleeved with an L-shaped transmission rod (14). One end of the L-shaped transmission rod (14) is fixedly connected with a transmission rack (15). One end of the homogenizing tank (8) is symmetrically hinged with a transmission gear (16) that meshes with the transmission rack (15). The hinged end of the transmission gear (16) is fixedly connected with a first lifting rod (17). The other end of the first lifting rod (17) is hinged with a second lifting rod (18). The other end of the second lifting rod (18) is hinged to the top of the baffle plate (10). The bottom of the homogenizing tank (8) is fixedly connected to a guide slide rod (19), and the transmission rack (15) is slidably connected to the guide slide rod (19).

4. The automatic gypsum board forming equipment according to claim 3, characterized in that: The adaptive slurry opening adjustment mechanism also includes an adjustment rod (20) symmetrically hinged to the end of the extension rod (12). The end of the adjustment rod (20) is provided with a counterweight ball (21). The middle section of the adjustment rod (20) is hinged with a traction rod (22). The other end of the traction rod (22) is hinged to the sleeve rod (13). A return spring (23) is sleeved on the outer periphery of the extension rod (12), and the return spring (23) is installed between the sleeve rod (13) and the end of the extension rod (12).

5. The automatic gypsum board forming equipment according to claim 4, characterized in that: The bubble-popping defoaming mechanism includes a crankshaft (24) rotatably connected to the top of the base (1), and cranks (25) facing opposite directions are symmetrically arranged on the crankshaft (24). A connecting rod (26) is hinged to the shaft end of the crank (25). A pair of bubble-popping slide rods (27) are symmetrically fixedly connected to the top of the base (1). Bubble-popping sliders (28) are slidably connected to the two bubble-popping slide rods (27). The bottom of the connecting rod (26) is hinged to the bubble-popping sliders (28).

6. The automatic gypsum board forming equipment according to claim 5, characterized in that: The bubble-popping defoaming mechanism also includes a plurality of equipment mounting rods (29) disposed at one end of the bubble-popping slider (28). A buffer groove (30) is provided on the equipment mounting rod (29). A plurality of bubble-popping top rods (31) are evenly disposed on the equipment mounting rod (29). The bubble-popping top rods (31) pass through the equipment mounting rod (29) and slide therewith. The middle section of the bubble-popping rod (31) is fixedly connected to a buffer plate (32). The buffer plate (32) is located inside the buffer channel (30). Both its upper and lower ends are fixedly connected to buffer springs (33). The equipment mounting rods (29) on the two bubble-popping sliders (28) are staggered.

7. The automatic gypsum board forming equipment according to claim 6, characterized in that: The bubble-popping defoaming mechanism also includes a first bevel gear (34) fixedly connected to the end of the crankshaft (24), a second bevel gear (35) fixedly connected to the end of the main shaft (7), a bubble-popping transmission rod (36) rotatably connected to the top of the base (1), and third bevel gears (37) respectively provided at both ends of the bubble-popping transmission rod (36). One set of third bevel gears (37) meshes with the second bevel gear (35), and another set of third bevel gears (37) meshes with the first bevel gear (34) on the crankshaft (24).

8. The automatic gypsum board forming equipment according to claim 7, characterized in that: The same-speed feeding mechanism includes a first synchronous gear (38) fixedly connected to the shaft end of the active pressing wheel (5) and a second synchronous gear (39) fixedly connected to the shaft end of the driven feeding wheel (6), wherein the first synchronous gear (38) meshes with the second synchronous gear (39); Two driven feed wheels (6) are fixedly connected by a synchronizing rod (40). One driven feed wheel (6) is fixedly connected to the shaft end of a first speed wheel (41), and the main shaft (7) is fixedly connected to a second speed wheel (42). The outer circumference of the first speed wheel (41) and the second speed wheel (42) is fitted with a speed belt (43).

9. The automatic gypsum board forming equipment according to claim 8, characterized in that: The same-speed feeding mechanism also includes a gantry frame (44) fixedly connected to the top of the base (1). A guide groove (45) is provided on the top of the gantry frame (44). A guide slider (46) is slidably arranged inside the guide groove (45). A synchronous connecting frame (47) that is rotatably connected to the active pressing wheel (5) is also provided inside the gantry frame (44). The top of the synchronous connecting frame (47) is hinged with a drive rod (48), the top of the drive rod (48) is hinged with the guide slider (46), and the top of the gantry frame (44) is rotatably connected with a pressure adjusting rod (49). The pressure adjusting rod (49) has threaded grooves with opposite rotation directions and is threadedly connected to the two guide sliders (46) respectively.

10. A method of using an automatic gypsum board forming device, employing the automatic gypsum board forming device as described in claim 9, wherein the method comprises the following steps: S1: By rotating the pressure adjustment rod (49), the guide slider (46) is driven to move closer to each other, so that the active pressure wheel (5) moves down and cooperates with the driven feeding wheel (6) to clamp the protective paper and establish the feeding reference; S2: The rotation of the main shaft (7) drives the extension rod (12) to rotate. The counterweight ball (21) drives the sleeve rod (13) to move under the action of centrifugal force. The baffle plate (10) is driven to move upward through the transmission rack (15), so that the opening of the slurry outlet (9) is adaptively adjusted with the rotation speed of the main shaft (7). After the slurry is homogenized by the slurry equalization plate (11), it is laid on the lower protective paper (4). S3: The main shaft (7) drives the crankshaft (24) to rotate through the second bevel gear (35), causing the bubble-punching rod (31) to reciprocate in the vertical direction to puncture and defoam the slurry at high frequency; S4: The main shaft (7) drives the driven feed wheel (6) to rotate through the same speed belt (43), and the equal diameter structure ensures that the linear speed of the face paper feeding is synchronized with the linear speed of the forming conveyor belt (2).

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