An extrusion molding device for gypsum board

Abstract

The application belongs to the technical field of gypsum board forming, and particularly relates to an extrusion forming device for gypsum board, which comprises a jet reciprocating vibration mechanism, a gypsum board shaping mechanism, a rack assembly and a roller feeding mechanism. The rack assembly comprises a bottom plate and a supporting plate support, and the supporting plate support is arranged on the bottom plate. The jet reciprocating vibration mechanism comprises a reciprocating jet assembly, a spherical hinge connecting assembly and a top limiting assembly. The reciprocating jet assembly can generate periodic airflow below the lower forming paper, and the flexible vibration of the lower forming paper is realized through the continuous change of the airflow intensity, so that the paving of the gypsum slurry is uniform, and the problem of easy tearing of the lower forming paper caused by contact vibration is avoided.

Description

Technical Field

[0001] This invention belongs to the field of gypsum board molding technology, specifically referring to an extrusion molding device for gypsum board. Background Technology

[0002] Gypsum board is a material made primarily from building gypsum. It is a lightweight, high-strength, thin, easy-to-process building material with good sound insulation, heat insulation, and fire resistance properties. It is widely used in interior partitions, wall cladding panels, ceilings, sound-absorbing panels, floor baseboards, and various decorative panels in various buildings such as residences, office buildings, shops, hotels, and industrial plants.

[0003] When gypsum board is formed, gypsum slurry is fed between two layers of paper with folded edges, and its thickness is controlled by the top pressure roller. At the same time, vibration is needed to spread the gypsum evenly. However, the traditional mechanical vibration method applies lateral contact and friction during the paper movement, which can easily cause the paper to tear. This not only results in a high breakage rate but also places higher demands on the thickness and performance of the paper. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides an extrusion molding device for gypsum board. The device generates a periodically changing airflow under the lower forming paper through a reciprocating jet assembly. The continuous change of airflow intensity achieves flexible vibration of the lower forming paper, which can ensure the uniform spreading of gypsum slurry and avoid the problem of tearing of the lower forming paper when contacting the vibration.

[0005] Since the height of the adjustable bracket needs to be adjusted according to the thickness of the gypsum board, traditional transmission mechanisms such as bevel gears cannot guarantee the continuity of power transmission when the height of the top limiting roller changes. Therefore, this invention proposes a ball joint connection assembly, which not only has a simpler structural design, but also automatically drives the reciprocating jet assembly through the top limiting roller, which originally needs to rotate.

[0006] The technical solution adopted by the present invention is as follows: The present invention proposes an extrusion molding device for gypsum board, including an air-jet reciprocating vibration mechanism, a gypsum board shaping mechanism, a frame assembly, and a roller feeding mechanism. The frame assembly includes a base plate and a pallet support, with the pallet support disposed on the base plate. The air-jet reciprocating vibration mechanism includes a reciprocating air jet assembly, a ball joint connection assembly, and a top limiting assembly. The reciprocating air jet assembly and the top limiting assembly are disposed on the base plate, and the ball joint connection assembly is disposed between the reciprocating air jet assembly and the top limiting assembly.

[0007] The jet-type reciprocating vibration mechanism generates a periodically changing airflow below the lower forming paper. By continuously changing the intensity of the airflow, it achieves flexible vibration of the lower forming paper, which can ensure the uniform spreading of gypsum slurry and avoid the problem of tearing of the lower forming paper when contacting the vibration.

[0008] Furthermore, the reciprocating jet assembly includes a sliding support, a jet pipe, and a synchronous connecting plate. The sliding support is disposed on the base plate, the jet pipe is slidably disposed in the sliding support, and nozzles are arrayed on the jet pipe. The air inlet end of the jet pipe is fixed to the synchronous connecting plate, and the other end of the jet pipe is slidably disposed on another synchronous connecting plate. The jet pipes on the two synchronous connecting plates are alternately distributed.

[0009] The air inlet of the jet pipe is connected to an external air pump through a pipe. Each nozzle has a coverage area. Through the movement of the nozzle, different parts of the lower forming paper will switch back and forth between three states: "not subject to gas thrust", "subject to gas thrust" and "subject to superimposed thrust", thereby achieving the technical effect of using airflow to drive the lower forming paper to vibrate.

[0010] Preferably, the ball joint connection assembly includes a rotating disk, a reciprocating rod, a ball joint connecting rod, and a ball socket. The rotating disk is disposed on the top limiting assembly, the reciprocating rod is disposed on the outside of the synchronous connecting plate, the ball socket is disposed at the end of the reciprocating rod and the eccentric part of the rotating disk, and the two ends of the ball joint connecting rod are provided with ball heads, which are rotatably disposed in the ball socket.

[0011] Compared to traditional steering transmission mechanisms such as bevel gears, ball joint connection components not only have a simpler structural design, but also maintain transmission performance even when the height of the adjustable bracket is adjusted.

[0012] As a further preferred embodiment of the present invention, the top limiting assembly includes a top limiting roller and an adjustable bracket, the adjustable bracket being disposed on the base plate, the top limiting roller being rotatably disposed in the adjustable bracket, and the top limiting roller and the upper forming paper being in rolling contact.

[0013] Through the linkage of the ball joint, the top limiting roller can continuously rotate while driving the synchronous connecting plates on both sides to slide back and forth. Since the two synchronous connecting plates move in opposite directions, the coverage area of ​​the nozzle will overlap.

[0014] Furthermore, the gypsum board shaping mechanism includes a forming mold assembly, the forming mold assembly includes a bottom support plate, the bottom support plate is disposed on a support plate bracket, and the bottom of the bottom support plate is provided with a hollowed-out portion that does not affect the airflow.

[0015] The bottom of the bottom support plate is hollowed out, which can support the lower forming paper without affecting the passage and action of gas on the lower forming paper. The inner surface of the bottom support plate should be coated with a low coefficient of friction, or the resistance of the lower forming paper during movement can be reduced by setting small-diameter support rollers.

[0016] Preferably, the molding die assembly further includes a lower molding paper and an upper molding paper, the bottom support plate is provided with a side baffle, the lower molding paper is slidably disposed inside the bottom support plate and has folded edges on both sides corresponding to the side baffles, the upper molding paper is located above the lower molding paper, and the gypsum material is located between the lower molding paper and the upper molding paper.

[0017] The drying device can perform preliminary drying on the molded gypsum board, giving it a certain physical strength, thereby preventing deformation during subsequent feeding and cutting processes.

[0018] As a further preferred embodiment of the present invention, the gypsum board shaping mechanism further includes a drying device and a feeding device, which are located on both sides of the top limiting roller, and are fixedly connected to the external frame.

[0019] Furthermore, the roller feeding mechanism includes a support assembly and a drive assembly. The support assembly is disposed on the base plate, the drying device is located between the top limiting roller and the support assembly, and the drive assembly is disposed on the support assembly.

[0020] Preferably, the support assembly includes a roller bracket and a bottom roller, the roller bracket being disposed on the base plate, the bottom roller being rotatably disposed in the roller bracket, and the bottom roller being in rolling contact with the lower forming paper.

[0021] As a further preferred embodiment of the present invention, the driving assembly includes a driving roller and a driving gear. The driving roller is rotatably disposed in the roller support, the driving roller is in rolling contact with the upper forming paper, the driving roller and the top limiting roller have the same linear velocity, the driving gear is disposed at one end of the driving roller, and the driving gear is connected to an external motor.

[0022] As a further preferred embodiment of the present invention, the roller feeding mechanism further includes a transmission assembly, which includes a transmission pulley and a transmission belt. The transmission pulley is disposed on the drive roller, the rotating disk is provided with a pulley portion, and the transmission belt is disposed between the transmission pulley and the pulley portion.

[0023] The beneficial effects achieved by the present invention using the above structure are as follows:

[0024] (1) The jet-type reciprocating vibration mechanism can generate a periodically changing airflow under the lower forming paper. The continuous change of airflow intensity can achieve flexible vibration of the lower forming paper, which can ensure that the gypsum slurry is spread evenly and avoid the problem of tearing of the lower forming paper when contacting the vibration.

[0025] (2) Each nozzle has a coverage area. Through the movement of the nozzle, different parts of the lower forming paper will switch back and forth between three states: "not subject to gas thrust", "subject to gas thrust" and "subject to superimposed thrust", thereby achieving the technical effect of using airflow to drive the lower forming paper to vibrate.

[0026] (3) Compared with traditional bevel gear steering transmission mechanisms, ball joint connection components not only have a simpler structural design, but also maintain the transmission effect when the height of the adjustable bracket is adjusted.

[0027] (4) Through the linkage of the ball joint, the top limit roller can continuously rotate while driving the synchronous connecting plates on both sides to slide back and forth. Since the two synchronous connecting plates move in opposite directions, the coverage area of ​​the nozzle will overlap.

[0028] (5) The bottom of the bottom support plate is hollowed out so that it can support the lower forming paper without affecting the gas passing through and acting on the lower forming paper. The inner surface of the bottom support plate should be coated with a low coefficient of friction, or the resistance of the lower forming paper during movement can be reduced by setting small diameter support rollers, etc.

[0029] (6) The drying device can perform preliminary drying on the gypsum board after molding, so that it has a certain physical strength, thereby avoiding deformation in the subsequent feeding and cutting processes. Attached Figure Description

[0030] Figure 1 This is a perspective view of an extrusion molding apparatus for gypsum board according to the present invention;

[0031] Figure 2 This is a front view of an extrusion molding apparatus for gypsum board according to the present invention;

[0032] Figure 3 This is a left view of an extrusion molding apparatus for gypsum board according to the present invention.

[0033] Figure 4 This is a top view of an extrusion molding apparatus for gypsum board according to the present invention;

[0034] Figure 5 for Figure 3 A cross-sectional view along the cutting line AA;

[0035] Figure 6 for Figure 2A cross-sectional view along the cutting line BB;

[0036] Figure 7 for Figure 6 A magnified view of a section at point I;

[0037] Figure 8 for Figure 1 Enlarged view of a section at point II;

[0038] Figure 9 for Figure 5 Enlarged view of a section at point III;

[0039] Figure 10 This is a schematic diagram of the nozzle's coverage area.

[0040] The components include: 1. Air-jet reciprocating vibration mechanism; 2. Gypsum board shaping mechanism; 3. Frame assembly; 4. Roller feeding mechanism; 5. Reciprocating air-jet assembly; 6. Ball joint connection assembly; 7. Top limiting assembly; 8. Sliding support; 9. Air jet pipe; 10. Synchronous connecting plate; 11. Rotary disc; 12. Reciprocating rod; 13. Ball joint connecting rod; 14. Ball socket seat; 15. Top limiting roller; 16. Adjustable bracket; 17. Nozzle; 18. Pulley section. 19. Ball head; 20. Molding mold assembly; 21. Drying device; 22. Feeding device; 23. Lower forming paper; 24. Upper forming paper; 25. Bottom support plate; 26. Side baffle; 27. Base plate; 28. Support plate bracket; 29. ​​Support assembly; 30. Drive assembly; 31. Transmission assembly; 32. Roller bracket; 33. Bottom support roller; 34. Drive roller; 35. Drive gear; 36. Transmission pulley; 37. Transmission belt.

[0041] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0042] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0043] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0044] like Figures 1-9 As shown, the present invention proposes an extrusion molding device for gypsum board, including a jet-type reciprocating vibration mechanism 1, a gypsum board shaping mechanism 2, a frame assembly 3, and a roller feeding mechanism 4. The frame assembly 3 includes a base plate 27 and a pallet support 28, with the pallet support 28 disposed on the base plate 27. The jet-type reciprocating vibration mechanism 1 includes a reciprocating jet assembly 5, a ball joint connection assembly 6, and a top limiting assembly 7, with the reciprocating jet assembly 5 and the top limiting assembly 7 disposed on the base plate 27, and the ball joint connection assembly 6 disposed between the reciprocating jet assembly 5 and the top limiting assembly 7.

[0045] The jet-type reciprocating vibration mechanism 1 can generate a periodically changing airflow below the lower forming paper 23. By continuously changing the intensity of the airflow, flexible vibration of the lower forming paper 23 can be achieved, which can ensure the uniform spreading of gypsum slurry and avoid the problem of tearing of the lower forming paper 23 when contact vibration occurs.

[0046] The reciprocating jet assembly 5 includes a sliding support 8, a jet pipe 9, and a synchronous connecting plate 10. The sliding support 8 is mounted on the base plate 27. The jet pipe 9 is slidably mounted in the sliding support 8. The jet pipe 9 is provided with an array of nozzles 17. The air inlet end of the jet pipe 9 is fixed to the synchronous connecting plate 10. The other end of the jet pipe 9 is slidably mounted on another synchronous connecting plate 10. The jet pipes 9 on the two synchronous connecting plates 10 are alternately distributed.

[0047] The air inlet of the jet pipe 9 is connected to an external air pump through a pipe. Each nozzle 17 has a coverage area. Through the movement of the nozzle 17, different parts of the lower forming paper 23 will switch back and forth between three states: "not subject to gas thrust", "subject to gas thrust" and "subject to superimposed thrust", thereby achieving the technical effect of using airflow to drive the lower forming paper 23 to vibrate.

[0048] The ball joint connection assembly 6 includes a rotating disk 11, a reciprocating rod 12, a ball joint connecting rod 13, and a ball socket seat 14. The rotating disk 11 is located on the top limiting assembly 7, the reciprocating rod 12 is located on the outside of the synchronous connecting plate 10, the ball socket seat 14 is located at the end of the reciprocating rod 12 and the eccentric part of the rotating disk 11, and the two ends of the ball joint connecting rod 13 are provided with ball heads 19, which are rotatably located in the ball socket seat 14.

[0049] Compared with traditional steering transmission mechanisms such as bevel gears, the ball joint connection assembly 6 not only has a simpler structural design, but also maintains the transmission effect when the height of the adjustable bracket 16 is adjusted.

[0050] The top limiting assembly 7 includes a top limiting roller 15 and an adjustable bracket 16. The adjustable bracket 16 is mounted on the base plate 27, and the top limiting roller 15 is rotatably mounted in the adjustable bracket 16. The top limiting roller 15 and the upper forming paper 24 are in rolling contact.

[0051] Through the linkage of the ball joint 13, the top limiting roller 15 can continuously rotate while driving the synchronous connecting plates 10 on both sides to slide back and forth. Since the two synchronous connecting plates 10 move in opposite directions, the coverage area of ​​the nozzle 17 will overlap.

[0052] The gypsum board shaping mechanism 2 includes a forming mold assembly 20, which includes a bottom support plate 25. The bottom support plate 25 is mounted on a support plate bracket 28, and the bottom of the bottom support plate 25 has a hollowed-out part that does not affect the airflow.

[0053] The bottom of the bottom support plate 25 is hollowed out, which can support the lower forming paper 23 without affecting the passage of gas and its action on the lower forming paper 23. The inner surface of the bottom support plate 25 should be coated with a low coefficient of friction, or the resistance of the lower forming paper 23 during movement can be reduced by setting small diameter support rollers, etc.

[0054] The molding die assembly 20 also includes a lower molding paper 23 and an upper molding paper 24. A side baffle 26 is provided on the bottom support plate 25. The lower molding paper 23 is slidably disposed inside the bottom support plate 25 and has folded edges on both sides corresponding to the side baffle 26. The upper molding paper 24 is located above the lower molding paper 23, and the gypsum material is located between the lower molding paper 23 and the upper molding paper 24.

[0055] The drying device 21 can perform preliminary drying on the molded gypsum board, giving it a certain physical strength, thereby preventing deformation during subsequent feeding and cutting processes.

[0056] The gypsum board shaping mechanism 2 also includes a drying device 21 and a feeding device 22. The drying device 21 and the feeding device 22 are located on both sides of the top limiting roller 15, and the drying device 21 and the feeding device 22 are fixed to the external frame.

[0057] The roller feeding mechanism 4 includes a support assembly 29 and a drive assembly 30. The support assembly 29 is located on the base plate 27, the drying device 21 is located between the top limiting roller 15 and the support assembly 29, and the drive assembly 30 is located on the support assembly 29.

[0058] The support assembly 29 includes a roller bracket 32 ​​and a bottom roller 33. The roller bracket 32 ​​is mounted on the base plate 27, and the bottom roller 33 is rotatably mounted in the roller bracket 32. The bottom roller 33 and the lower forming paper 23 are in rolling contact.

[0059] The drive assembly 30 includes a drive roller 34 and a drive gear 35. The drive roller 34 is rotatably mounted in the roller support 32. The drive roller 34 and the upper forming paper 24 are in rolling contact. The linear speed of the drive roller 34 and the top limiting roller 15 are equal. The drive gear 35 is located at one end of the drive roller 34 and is connected to an external motor.

[0060] The roller feeding mechanism 4 also includes a transmission assembly 31, which includes a transmission pulley 36 and a transmission belt 37. The transmission pulley 36 is located on the drive roller 34, and the rotating disk 11 is provided with a pulley portion 18. The transmission belt 37 is located between the transmission pulley 36 and the pulley portion 18.

[0061] like Figure 10 As shown, the solid circle represents the coverage area of ​​one set of nozzles 17, and the dashed circle represents the coverage area of ​​another set of nozzles 17. The lower forming paper 23 within the coverage area is pushed by the gas, while the lower forming paper 23 outside the coverage area is not pushed by the gas. The arrow indicates the direction of movement of the nozzles 17.

[0062] Since the two synchronous connecting plates 10 move in opposite directions, the solid line ring and the dashed line ring will intersect and separate. When they intersect, the lower forming paper 23 in the corresponding area is pushed by the superimposed gas. Different parts of the lower forming paper 23 will switch between the above three force states to achieve the technical effect of vibration.

[0063] In practical use, the external motor drives the drive roller 34 to rotate through the drive gear 35, and the bottom support roller 33 can rotate volutely or rotate synchronously with the drive roller 34 through gear transmission.

[0064] Since the gypsum board has a certain strength after being dried by the drying device 21, it can move the lower forming paper 23 and the upper forming paper 24 as a whole when the drive roller 34 rotates. During this process, the fluid gypsum slurry falls from the feeding device 22 into the lower forming paper 23, and is finally formed into a thin board with a specific thickness by the top limit of the bottom support plate 25 and the roller pressing.

[0065] When the top limiting roller 15 rotates, it will rotate the rotating disk 11. Through the linkage of the ball joint rod 13, it can slide back and forth with the synchronous connecting plate 10 and the jet pipe 9. The air inlet end of the jet pipe 9 is connected to the external air pump through the pipe. Since the sliding directions of the two synchronous connecting plates 10 are opposite, the coverage area of ​​the nozzle 17 will have cross overlap and separation.

[0066] The lower forming paper 23 within the coverage area of ​​nozzle 17 will be pushed by the gas, while the lower forming paper 23 outside the coverage area will not be pushed by the gas.

[0067] The lower forming paper 23 in the area covered by the two nozzles 17 is pushed by the superimposed gas. Different parts of the lower forming paper 23 will switch between the three stress states mentioned above to achieve the technical effect of vibration. This can ensure that the gypsum slurry is spread evenly between the lower forming paper 23 and the upper forming paper 24, and avoid the problem of tearing of the lower forming paper 23 when contacting the vibration.

[0068] After being initially dried, the gypsum board will undergo subsequent cutting and high-temperature drying after passing through the roller feeding mechanism 4.

[0069] If the movement of the upper forming paper 24 is insufficient to drive the top limiting roller 15 to rotate, a transmission belt 37 can be set between the pulley section 18 and the transmission pulley 36 for power transmission, thereby ensuring that the linear speeds of the top limiting roller 15 and the drive roller 34 are equal when they rotate.

[0070] When the thickness of the gypsum board changes, the side baffles 26 of different heights need to be replaced. At the same time, the height of the top limiting roller 15 can be adjusted by the adjustable bracket 16. The structure of the ball joint connection assembly 6 is not only simpler, but also maintains the transmission effect when adjusting the adjustable bracket 16.

[0071] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0072] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. An extrusion molding apparatus for gypsum board, characterized in that: It includes a jet-type reciprocating vibration mechanism (1), a gypsum board shaping mechanism (2), a frame assembly (3) and a roller feeding mechanism (4). The frame assembly (3) includes a base plate (27) and a pallet bracket (28), and the pallet bracket (28) is disposed on the base plate (27). The jet-type reciprocating vibration mechanism (1) includes a reciprocating jet assembly (5), a ball joint connection assembly (6), and a top limiting assembly (7). The reciprocating jet assembly (5) and the top limiting assembly (7) are disposed on the base plate (27), and the ball joint connection assembly (6) is disposed between the reciprocating jet assembly (5) and the top limiting assembly (7). The reciprocating jet assembly (5) includes a sliding support (8), a jet pipe (9), and a synchronous connecting plate (10). The sliding support (8) is mounted on a base plate (27). The jet pipe (9) is slidably mounted in the sliding support (8). The jet pipe (9) is provided with an array of nozzles (17). The air inlet end of the jet pipe (9) is fixed to the synchronous connecting plate (10), and the other end of the jet pipe (9) is slidably mounted on another synchronous connecting plate (10). The jet pipes (9) on the two synchronous connecting plates (10) are alternately distributed. The ball joint connection assembly (6) includes a rotating disk (11), a reciprocating rod (12), a ball joint connecting rod (13), and a ball socket (14). The rotating disk (11) is located on the top limiting assembly (7). The reciprocating rod (12) is located on the outside of the synchronous connecting plate (10). The ball socket (14) is located at the end of the reciprocating rod (12) and the eccentric part of the rotating disk (11). Ball heads (19) are provided at both ends of the ball joint connecting rod (13). The ball heads (19) are rotatably located in the ball socket (14). The gypsum board shaping mechanism (2) includes a molding die assembly (20) and a drying device (21); The top limiting assembly (7) includes a top limiting roller (15) and an adjustable bracket (16), and the forming mold assembly (20) also includes a lower forming paper (23) and an upper forming paper (24). The roller feeding mechanism (4) includes a support assembly (29) and a drive assembly (30). The support assembly (29) is located on the base plate (27). The drying device (21) is located between the top limiting roller (15) and the support assembly (29). The drive assembly (30) is located on the support assembly (29). The support assembly (29) includes a roller bracket (32) and a bottom roller (33). The roller bracket (32) is mounted on the base plate (27), and the bottom roller (33) is rotatably mounted in the roller bracket (32). The bottom roller (33) and the lower forming paper (23) are in rolling contact. The drive assembly (30) includes a drive roller (34) and a drive gear (35). The drive roller (34) is rotatably mounted in the roller support (32). The drive roller (34) and the upper forming paper (24) are in rolling contact. The linear velocity of the drive roller (34) and the top limiting roller (15) are equal. The drive gear (35) is located at one end of the drive roller (34) and is connected to an external motor. The roller feeding mechanism (4) further includes a transmission assembly (31), which includes a transmission pulley (36) and a transmission belt (37). The transmission pulley (36) is located on the drive roller (34), and the rotating disk (11) is provided with a pulley portion (18). The transmission belt (37) is located between the transmission pulley (36) and the pulley portion (18).

2. The gypsum board extrusion molding apparatus according to claim 1, characterized in that: The molding die assembly (20) includes a bottom support plate (25), which is mounted on a support plate bracket (28). The bottom of the bottom support plate (25) has a hollowed-out portion that does not affect the airflow.

3. The gypsum board extrusion molding apparatus according to claim 2, characterized in that: The adjustable bracket (16) is mounted on the base plate (27), and the top limiting roller (15) is rotatably mounted in the adjustable bracket (16).

4. The gypsum board extrusion molding apparatus according to claim 3, characterized in that: The bottom support plate (25) is provided with a side baffle (26). The lower forming paper (23) is slidably disposed inside the bottom support plate (25) and has folded edges on both sides corresponding to the side baffle (26). The upper forming paper (24) is located above the lower forming paper (23). The top limiting roller (15) and the upper forming paper (24) are in rolling contact. The gypsum material is located between the lower forming paper (23) and the upper forming paper (24).

5. The gypsum board extrusion molding apparatus according to claim 4, characterized in that: The gypsum board shaping mechanism (2) also includes a feeding device (22). The drying device (21) and the feeding device (22) are located on both sides of the top limiting roller (15), and the drying device (21) and the feeding device (22) are fixed to the external frame.

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