A gypsum board production apparatus and method

Abstract

This invention discloses a gypsum board production apparatus and method, relating to the technical field of gypsum board production. It includes a frame and a flipping spindle mounted on the frame. Several sets of flipping blades are arranged sequentially along the circumference of the flipping spindle. Gypsum boards entering each set of flipping blades are flipped half a revolution by the flipping spindle for a flipping operation. It also includes a flipping clamping mechanism, which includes end seats installed at both ends of the flipping spindle along its axial direction. Each set of flipping blades is divided into two pairs, and each end seat has a pair of flipping blades arranged in a relatively movable manner. Each end seat is equipped with a control mechanism for controlling the relative movement of each pair of flipping blades. During the feeding stroke, the control mechanism controls each pair of flipping blades to move closer together and clamp the gypsum board. During the unloading stroke, the control mechanism controls each pair of flipping blades to move away from each other and not clamp the gypsum board.

Description

Technical Field

[0001] This invention relates to the technical field of gypsum board production, specifically to a gypsum board production apparatus and method. Background Technology

[0002] As is well known, gypsum board, as a lightweight, environmentally friendly, and easy-to-construct building decoration material, is widely used in construction scenarios such as ceilings and partitions in residential and commercial buildings. Its production process involves multiple steps, including slurry forming, facing paper lamination, continuous drying, conveying, turning, stacking, and packaging. Among these, the turning operation is a key step to ensure the uniform quality of both sides of the gypsum board and to meet the requirements of subsequent stacking, assembly, and packaging processes.

[0003] In automated gypsum board production lines, continuous flipping operations commonly employ a windmill-type flipping mechanism. This mechanism mainly consists of a rotating main shaft, multiple sets of evenly distributed flipping blades, a drive unit, an infeed conveyor mechanism, an outfeed conveyor mechanism, and a frame. Its working principle is as follows: after drying, the gypsum board is fed into the flipping mechanism at a uniform speed by the infeed conveyor mechanism. The flipping blades receive and limit the gypsum board, and it rotates 180° synchronously with the rotating main shaft to complete the flipping action. Then, the outfeed conveyor mechanism transports the flipped gypsum board to the next process.

[0004] For example, the patent with announcement number CN117842650A, announcement date April 9, 2024, entitled "A Rotary Cage-Type Lateral Conveying Device and Method," belongs to the technical field of gypsum board production lines. The rotary cage of the composite disc is connected to aluminum alloy flip-plate wings. Adjusting rods are connected to both sides of the aluminum alloy flip-plate wings. One end of the adjusting rod is connected to the aluminum alloy flip-plate wing, and the other end is connected to a rod fixing plate. The rod fixing plate is connected to the rotary cage. The inner cavity of the rotary cage is connected to the drive shaft through an expansion sleeve. The other end of the adjusting rod between adjacent aluminum alloy flip-plate wings is connected to the rod fixing plate. The motor base, bearing support, and sliding bearing base of the drive device are connected to the frame. The motor base is connected to the geared motor, the geared motor is connected to the servo motor, and the geared motor is connected to the drive shaft through a coupling. Several positioning screws connect adjacent composite discs. This invention enables gypsum board to flip smoothly and continuously, with good overall structural integrity, making it easy to install, debug, and maintain, and avoiding premature wear of multi-link structures during frequent use.

[0005] The shortcoming of the existing technology is that, in order to facilitate the loading and unloading of gypsum board, the distance between two adjacent flip blades is greater than the thickness of the gypsum board. During the flipping process, the gypsum board will fall from one side to the other between the two adjacent flip blades. Due to the brittleness of the gypsum board itself, in the above situation, defects such as chipped edges, broken corners, and damaged facing paper are easily caused, which greatly increases the product defect rate. Summary of the Invention

[0006] The purpose of this invention is to provide a gypsum board production apparatus and method to solve the technical problems in related technologies.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A gypsum board production apparatus includes a frame and a flipping spindle mounted on the frame. Several sets of flipping blades are arranged sequentially along the circumference of the flipping spindle. Gypsum boards entering each set of flipping blades are flipped half a turn by the flipping spindle for a flipping operation. The apparatus also includes a flipping clamping mechanism, which includes end seats installed at both ends of the flipping spindle along its axial direction. Each set of flipping blades is divided into two pairs, and each end seat has a pair of flipping blades arranged in a relatively movable manner. Each end seat is provided with a control mechanism for controlling the relative movement of each pair of flipping blades. During the feeding stroke, the control mechanism controls each pair of flipping blades to move closer together and clamp the gypsum board. During the unloading stroke, the control mechanism controls each pair of flipping blades to move away from each other and not clamp the gypsum board.

[0009] As mentioned above, the surface of the flap blade that contacts the gypsum board is covered with an elastic protective layer.

[0010] The aforementioned control mechanism includes several control sliders slidably arranged on each end seat, with a first elastic element between the control slider and the end seat; an end plate is also fixedly connected to the frame at a position corresponding to the end of the flip plate main shaft, and a limiting component is provided on the end plate; each control slider corresponds to a pair of flip plate blades, and an extrusion component is provided on the control slider; during the feeding stroke, based on the pushing action of the gypsum board, the control slider drives the extrusion component to squeeze each pair of flip plate blades closer to each other and clamp the gypsum board, and the limiting component restricts the control slider from moving in a direction away from the center of the end seat; during the unloading stroke, the limiting component removes the limiting action on the control slider, and based on the rebound force of the first elastic element, the control slider drives the extrusion component to remove the squeezing action on the flip plate blades, and at the same time pushes the gypsum board away from each pair of flip plate blades.

[0011] The aforementioned extrusion component includes two extrusion blocks disposed on each control slider, and each flap blade is provided with an extrusion groove. The two extrusion blocks are slidably arranged in the two extrusion grooves on each pair of flap blades, and the extrusion grooves are inclined. During the stroke when the control slider is squeezed by the plasterboard toward the center of the end seat, the flap blades gradually come into contact with the plasterboard based on the extrusion force of the extrusion blocks on the extrusion grooves.

[0012] The aforementioned limiting component includes a limiting slider slidably arranged on each control slider, and a second elastic element is provided between the limiting slider and the corresponding control slider. A first limiting groove is provided on the end plate, and an inlet section and an outlet section are respectively provided at both ends of the first limiting groove. During the feeding stroke, the limiting slider enters the first limiting groove along the inlet section. During the unloading stroke, the limiting slider moves away from the first limiting groove along the outlet section.

[0013] As mentioned above, one end of the extrusion groove is provided with an extension groove, and the first limiting groove is wider than the limiting slider.

[0014] As described above, the sliding direction of the limiting slider in the entry section is parallel to the direction in which the gypsum board enters each pair of flap blades; the sliding direction of the limiting slider in the exit section is parallel to the direction in which the gypsum board moves away from each pair of flap blades.

[0015] As mentioned above, a second limiting groove is also provided on the end plate. Along the axial direction of the end plate, the depth of the second limiting groove is greater than the depth of the first limiting groove, and the second limiting groove connects the inlet section and the outlet section.

[0016] The above also includes a centering mechanism, which corrects the position of the gypsum board as it enters each pair of flap blades during the sliding stroke of the limit slider along the entry section.

[0017] This invention also relates to a method for producing gypsum board, which includes the following steps when producing gypsum board using the aforementioned gypsum board production apparatus:

[0018] Step 1: Plasterboard is fed into the machine. The plasterboard is conveyed to each set of flipping blades, and at the same time, the centering mechanism corrects the position of the plasterboard. Then, the control mechanism controls each pair of flipping blades to move closer to each other and clamp the plasterboard.

[0019] Step 2: Turn the plasterboard over. The main shaft of the flipping plate rotates, causing the clamped plasterboard to rotate half a turn to achieve the flipping.

[0020] Step 3: Plasterboard feeding. After the plasterboard flipping is completed, the control mechanism controls each pair of blades to move away from each other and removes the clamps on the plasterboard. Then the plasterboard is conveyed away from each set of flipping blades.

[0021] The beneficial effects of this invention are as follows: by setting up a control mechanism and moving the flipping blades on the flipping main shaft, the control mechanism allows each pair of flipping blades to approach each other, thereby clamping the plasterboard to be flipped and preventing the plasterboard from shaking during the flipping process, thus effectively improving the product yield. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1 This is a three-dimensional structural diagram of a gypsum board production device provided by the present invention;

[0024] Figure 2 A three-dimensional structural diagram of a flip-plate clamping mechanism for a gypsum board production device provided by the present invention;

[0025] Figure 3 This is a schematic diagram of the main view of the flip-plate clamping mechanism of a gypsum board production device provided by the present invention.

[0026] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure at point AA;

[0027] Figure 5 for Figure 3 Schematic diagram of the cross-sectional structure at point BB;

[0028] Figure 6 An exploded first-view view of a portion of the flip-plate clamping mechanism of a gypsum board production device provided by the present invention.

[0029] Figure 7 A second-view exploded view of a portion of the flip-plate clamping mechanism of a gypsum board production device provided by the present invention.

[0030] Figure 8 This is a three-dimensional structural diagram of the end plate of a gypsum board production device provided by the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Frame; 10. Flip plate main shaft; 11. Flip plate blade; 12. Infeed conveyor mechanism; 13. Outfeed conveyor mechanism; 14. Elastic protective layer; 15. Gypsum board; 2. Flip plate clamping mechanism; 20. End seat; 200. Slide groove; 201. Flip plate slider; 21. Control slide; 22. Control slider; 23. Extrusion block; 24. Extrusion groove; 25. End plate; 26. Limiting slider; 27. First limiting groove; 28. Infeed section; 29. ​​Outfeed section; 30. Extension groove; 31. Second limiting groove; 32. Centering support; 33. Centering roller; 34. Centering groove. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of the present invention, the following will be described in conjunction with the appendix. Figure 1 To be continued Figure 8 The present invention will now be described in further detail.

[0034] One embodiment of the present invention relates to a gypsum board production apparatus, including a frame 1 and a flipping spindle 10 mounted on the frame 1. Several sets of flipping blades 11 are arranged sequentially in the circumferential direction of the flipping spindle 10. Gypsum boards entering each set of flipping blades 11 are flipped half a turn with the flipping spindle 10 to perform a flipping operation. The apparatus also includes a flipping clamping mechanism 2, which includes end seats 20 installed at both ends of the flipping spindle 10 in the axial direction. Each set of flipping blades 11 is divided into two pairs. Each end seat 20 is provided with a pair of flipping blades 11 arranged in a relatively movable manner. Each end seat 20 is provided with a control mechanism for controlling the relative movement of each pair of flipping blades 11. During the feeding stroke, the control mechanism controls each pair of flipping blades 11 to move closer to each other and clamp the gypsum board. During the unloading stroke, the control mechanism controls each pair of flipping blades 11 to move away from each other and not clamp the gypsum board.

[0035] Specifically, during the production of gypsum board 15, it needs to be flipped, which is a key step to ensure the uniform quality of both sides of the gypsum board and meet the requirements of subsequent stacking, assembly, and packaging processes. The flipping mechanism mainly includes a frame 1 and a flipping spindle 10 mounted on the frame 1. One end of the flipping spindle 10 is connected to a drive device (such as a drive motor with a reducer). The drive device drives the flipping spindle 10 to rotate intermittently. The frame 1 also has a loading station and a unloading station. The loading station of the frame 1 is equipped with a board feeding conveyor 12 (such as a roller conveyor structure or a belt conveyor structure), and the unloading station of the frame 1 is equipped with a board output conveyor 13 (such as a roller conveyor structure or a belt conveyor structure). Several sets of flipping blades 11 are arranged circumferentially on the flipping spindle 10. The number of blades in each set is an even number, such as four, and they are placed at both ends of the flipping spindle 10, with two blades per pair. Spaces for holding gypsum board 15 are arranged between the flip blades 11. Each set of flip blades 11 rotates one revolution with the flip main shaft 10, which can flip a gypsum board. That is, the gypsum board is fed into a set of flip blades 11 at the loading station by the board feeding conveyor 12. After flipping half a revolution (180 degrees), it reaches the unloading station. The board unloading conveyor 13 drives the gypsum board away from the flip blades 11 to enter the next process. In the prior art, in order to facilitate the loading and unloading of gypsum board, the space between each pair of flip blades 11 is greater than the thickness of the gypsum board. During the flipping process, the gypsum board will fall from one side to the other between two adjacent flip blades 11, or tilt and collide in other directions. Due to the brittleness of the gypsum board itself, the above situations are prone to defects such as chipped edges, broken corners, and damaged facing paper, which greatly increases the product defect rate.

[0036] Based on the aforementioned technical problems, in this embodiment, the gypsum board is clamped and fixed during the feeding process, thus virtually eliminating collision issues during its flipping process. Specifically, end seats 20 are installed at both ends of the flipping main shaft 10. Each end seat 20 is disc-shaped and has several grooves 200 arranged on it. A flipping slider 201 slides within each groove 200. Each flipping blade 11 is connected to a corresponding flipping slider 201, allowing relative movement between each pair of flipping blades 11. The position of the flipping blades 11 and their corresponding flipping sliders 201 can be adjusted using bolts, allowing the distance between each pair of flipping blades 11 to be adjusted according to the thickness of the gypsum board. This ensures sufficient clamping force on the gypsum board without damaging it. The distance between each pair of flipping blades 11 is controlled by a regulating mechanism to achieve clamping and releasing of the gypsum board. The regulating mechanism can be a rack and pinion mechanism, a cylinder, a lead screw transmission mechanism, etc.

[0037] This implementation, by setting up a control mechanism and moving the flipping blades 11 on the flipping main shaft 10, utilizes the control function of the control mechanism to allow each pair of flipping blades 11 to approach each other, thereby clamping the plasterboard to be flipped and preventing the plasterboard from shaking during the flipping process, thus effectively improving the product yield.

[0038] Preferably, the surface of the flap blade 11 that contacts the gypsum board 15 is covered with an elastic protective layer 14; specifically, based on the increase in the clamping force of each pair of flap blades 11, the elastic protective layer 14 can undergo elastic deformation, ensuring that the gypsum board is clamped while also protecting the surface of the gypsum board.

[0039] Preferably, the control mechanism includes a plurality of control sliders 22 slidably arranged on each end seat 20, and a first elastic element is provided between the control sliders 22 and the end seat 20; an end plate 25 is also fixedly connected to the frame 1 at a position corresponding to the end of the flip plate main shaft 10, and a limiting component is provided on the end plate 25; each control slider 22 corresponds to a pair of flip plate blades 11, and an extrusion component is provided on the control slider 22; during the feeding stroke, based on the pushing action of the gypsum board, the control slider 22 drives the extrusion component to squeeze each pair of flip plate blades 11 closer to each other and clamp the gypsum board, and the limiting component restricts the control slider 22 from moving in a direction away from the center of the end seat 20; during the unloading stroke, the limiting component removes the limiting action on the control slider, and based on the rebound force of the first elastic element, the control slider 22 drives the extrusion component to remove the squeezing action on the flip plate blades 11, and at the same time pushes the gypsum board away from each pair of flip plate blades 11.

[0040] Specifically, a plurality of control slides 21 are sequentially opened along the circumference of the end base 20. Each control slide 21 has a control slider 22 slidably mounted within it. The sliding direction of the control slider 22 within its corresponding control slide 21 is parallel to the radial direction of the control slide 21 on the end base 20. That is, the control slider 22 can move radially closer to or further away from the center of the end base 20. A first elastic element is also provided between each control slider 22 and the end base 20. Based on the elastic force of the first elastic element, the control slider 22 tends to always move away from the center of the end base 20. When the gypsum board is conveyed into the space between each pair of flip-blade blades 11 by the feeding conveyor mechanism 12, the squeezing force of the gypsum board 15 on the control slider 22 causes the control slider 22 to move towards the center of the end base 20. The squeezing element then squeezes the two flip-blade blades 11 of each pair closer together, clamping the gypsum board. The selectable actual... In this embodiment, the extrusion component includes two extrusion blocks 23 disposed on each control slider 22. Each flap blade 11 is provided with an extrusion groove 24. The two extrusion blocks 23 are slidably arranged in the two extrusion grooves 24 on each pair of flap blades 11, and the extrusion grooves 24 are inclined. That is, when the extrusion blocks 23 move in the corresponding extrusion grooves 24, the two are similar to the extrusion action achieved by the wedge-shaped fit. The two extrusion blocks 23 can only follow the control slider 22 connected to them and move in a straight line. The movement direction of the flap blades 11 is perpendicular to the movement direction of the control slider 22. During the stroke when the control slider 22 is squeezed by the gypsum board and moves closer to the center of the end seat 20, the extrusion force of the extrusion blocks 23 on the extrusion grooves 24 enables the two flap blades 11 of each pair to obtain the driving force to move closer to each other, so that the flap blades 11 gradually come into contact with the gypsum board. This process is also the feeding stroke of the gypsum board.

[0041] After the gypsum board is clamped, the adjusting slider 22 is subjected to the rebound force of the first elastic element. Therefore, it is necessary to restrict the adjusting slider 22 so that it can only move away from the center of the end seat 20 based on the rebound force of the first elastic element when the material is unloading. Therefore, an end plate 25 is fixedly connected to the frame 1 at the position corresponding to the end of the flip plate main shaft 10. The end plate 25 does not rotate with the flip plate main shaft. The end plate 25 is provided with a limiting component for restricting the movement of the adjusting slider 22. In an optional embodiment, the limiting component includes a limiting slider 26 slidably arranged on each adjusting slider 22. The sliding direction of the limiting slider 26 is parallel to the axial direction of the flip plate main shaft 10, and the limiting slider 26 is parallel to the corresponding adjusting slider 22. A second elastic element is provided. Based on the elastic force of the second elastic element, the limiting slider 26 tends to always move away from the corresponding regulating slider 22. A first limiting groove 27 is provided on the end plate 25. The first limiting groove 27 is arc-shaped, and its center is on the axis of the flip plate main shaft 10. The two ends of the first limiting groove 27 are respectively provided with an inlet section 28 and an outlet section 29. During the feeding stroke, the limiting slider 26 enters the first limiting groove 27 along the inlet section 28. The sliding direction of the limiting slider 26 in the inlet section 28 is parallel to the direction in which the gypsum board enters each pair of flip plate blades 11. During the unloading stroke, the limiting slider 26 moves away from the first limiting groove 27 along the outlet section 29. The sliding direction of the limiting slider 26 in the outlet section 29 is parallel to the direction in which the gypsum board 15 moves away from each pair of flip plate blades 11.

[0042] That is, as the regulating slider 22 moves towards the center of the end seat 20 under the pushing action of the plasterboard, the regulating slider 22 will drive the connected limiting slider 26 to move within the entry section 28. When the regulating slider 22 moves to its limit position (limited by the sliding distance of the extrusion block 23 in the extrusion groove 24, the regulating slider 22 can no longer move; if there were no extrusion groove 24, the regulating slider 22 could still continue to move towards the center of the end seat 20 under external force) and can no longer move towards the center of the end seat 20, the limiting slider 26 completely enters the first limiting groove 27, which is arc-shaped. Thus, during the rotation of the flip plate main shaft 10, the limiting slider 26 only... If the control slider 22 can slide along the first limiting groove 27, it cannot move radially away from the center position of the end seat 20, thereby limiting the control slider 22. When the plasterboard needs to be unloaded after being flipped 180 degrees, the limiting slider 26 reaches the position where the first limiting groove 27 and the outlet section 29 are completely aligned. Under the action of the rebound force of the first elastic element, the control slider 22 will drive the limiting slider 26 to leave the first limiting groove 27 along the outlet section 29. The squeezing action of the extrusion block 23 on the extrusion groove 24 is opposite to that described above. Then the clamping action of each pair of two flip blades 11 on the plasterboard disappears, and the board conveying mechanism 13 can be started to take the plasterboard away from the flip blades 11 to the next process.

[0043] Preferably, one end of the extrusion groove 24 is provided with an extension groove 30, and the first limiting groove 27 is wider than the limiting slider 26; specifically, the extension groove 30 is located at one end of the extrusion groove 24 near the center of the end seat 20, the sliding direction of the extrusion block 23 in the extension groove 30 is parallel to the sliding direction of the regulating slider 22 in the regulating slide 21, and the first limiting groove 27 is wider than the limiting slider 26. The advantage of this arrangement is that, during the process of plasterboard flipping, under the action of gravity, the plasterboard can exert an extrusion action on the regulating slider 22 again, and the regulating slider 22 can... To get closer to the center of the end seat 20, the gypsum board will pull and deform the elastic protective layer 14 wrapped on the surface of the flip blade 11. The elastic protective layer 14 will have a reverse force on the gypsum board. When the gypsum board shakes during the flipping process, it will have a guiding effect, further preventing the gypsum board 15 from shaking in other directions and causing collision damage (the flipping clamping mechanism 2 components such as the frame 1 are arranged at both ends of the axial direction of the flipping main shaft 10. If the gypsum board shakes in this direction, a collision will occur, affecting the flipping operation).

[0044] Furthermore, a second limiting groove 27 is also provided on the end plate 25. Along the axial direction of the end plate 25, the depth of the second limiting groove 31 is greater than the depth of the first limiting groove 27, and the second limiting groove 27 connects the inlet section 28 and the outlet section 29.

[0045] Specifically, the second limiting groove 31 is also arc-shaped, with its center on the axis of the flip plate main shaft 10. The radial dimension of the second limiting groove 31 is larger than that of the first limiting groove 27. When the limiting slider 26 is in the second limiting groove 31, the position of the adjusting slider 22 is the position just pushed by the plasterboard. That is, after the limiting slider 26 leaves the first limiting groove 27 from the exit section 29, it will enter the second limiting groove 31. During the flipping process, the plasterboard gradually moves upward and then downward along the arc trajectory. After the plasterboard is fed, the flip plate blade 11 moves downward and then upward along the arc trajectory. Therefore, the position of the adjusting slider 22 needs to be restricted again to prevent it from being stretched by gravity. The elastic element causes metal fatigue in the first elastic element. Subsequently, due to the rebound force of the first elastic element, the limiting slider 26 cannot fully enter the second limiting groove 31 from the exit section 29. Secondly, the gypsum board flips 180 degrees each time, that is, the angle between the loading station and the unloading station is 180 degrees. In order to prevent the drive device from not being able to move each pair of flip blades 11 to the loading station and the unloading station with relatively high precision, the inlet section 28 and the outlet section 29 between the first limiting groove 27 and the second limiting groove 31 can be used to form a rotation limit on the flip main shaft 10. That is, the limiting slider 26 must accurately pass through the outlet section 29 or the inlet section 28 for the flip main shaft 10 to continue to be rotated.

[0046] Furthermore, it also includes a centering mechanism. During the sliding stroke of the limiting slider 26 along the entry section 28, the centering mechanism corrects the position of the gypsum board entering each pair of flip blades 11. Specifically, in the aforementioned embodiment, the depth of the second limiting groove 31 is greater than the depth of the first limiting groove 27, so the entry section 28 is an inclined section. That is, during the process of the limiting slider 26 entering the first limiting groove 27 from the entry section 28, the limiting slider 26 will be squeezed by the entry section 28, causing the limiting slider 26 to tend to move closer to the control slider 22 connected to it. In this way, this feature can be used to set up a centering mechanism to correct the position of the gypsum board, so as to ensure that the gypsum board will not deviate in other directions during the process of being transported into the space between each pair of flip blades. This can ensure that the flip blades bear the force of the gypsum board evenly, and will not cause the gypsum board to obliquely hit the flip blades or the frame during the flipping process. The centering mechanism includes a centering support 32 mounted on the limiting slider 26. Several centering rollers 33 are arranged on the centering support 32 along the moving direction of the gypsum board. That is, during the process of the limiting slider 26 moving along the entry section 28 into the first limiting groove 27, the two centering supports 32 on both sides of the moving direction of the gypsum board approach each other and exert a squeezing effect on both sides of the gypsum board. At this time, the gypsum board cannot be clamped. That is, the end of the extrusion groove 24 away from the center of the end seat 20 is arranged with a centering groove 34. That is, when the gypsum board initially pushes the control slider 22, the extrusion block 23 moves in the centering groove 34. Its moving direction is parallel to the spatial direction between each pair of flip blades 11 when the gypsum board enters. When the gypsum board is centered, the limiting slider 26 is still in the entry section 28. Then the extrusion block 23 enters the extrusion groove 24 and begins to clamp the gypsum board until the limiting slider 26 is completely in the first limiting groove 27. Each set of flip-plate blades clamps and limits the two sides of the gypsum board, while the centering mechanism can center and limit the gypsum board from both ends. In this way, there are multiple limits during the flipping process of the gypsum board, thus ensuring the smooth flipping of the gypsum board.

[0047] Another embodiment of the present invention also relates to a method for producing gypsum board, which includes the following steps when producing gypsum board using the gypsum board production apparatus described above:

[0048] Step 1: Plasterboard is fed into the machine. The plasterboard is conveyed to each set of flip blades 11, and at the same time, the centering mechanism corrects the position of the plasterboard. Then, the control mechanism controls each pair of flip blades 11 to move closer to each other and clamp the plasterboard.

[0049] Step 2: Turn the plasterboard over. The main shaft 10 of the flipping plate rotates, causing the clamped plasterboard to rotate half a turn to achieve the flipping.

[0050] Step 3: Plasterboard feeding, plasterboard flipping completed, control mechanism controls each pair of blades to move away from each other and remove the clamps on the plasterboard, then the plasterboard is conveyed away from each set of flipping blades 11.

[0051] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A gypsum board production apparatus, comprising a frame and a flipping main shaft mounted on the frame, wherein a plurality of sets of flipping blades are arranged sequentially in the circumferential direction of the flipping main shaft, and gypsum board entering each set of flipping blades is flipped half a revolution along the flipping main shaft to perform a flipping operation, characterized in that, Also includes: The flap clamping mechanism includes end seats installed at both ends of the flap main shaft. Each set of flap blades is divided into two pairs. Each end seat is provided with a pair of flap blades that can move relative to each other. Each end seat is provided with a control mechanism for controlling the relative movement of each pair of flap blades. During the feeding process, the control mechanism controls each pair of flap blades to move closer to each other and clamp the gypsum board; During the feeding process, the control mechanism keeps each pair of flap blades away from each other to prevent them from clamping the gypsum board.

2. The gypsum board production apparatus according to claim 1, characterized in that, The surface of the flap blade that contacts the gypsum board is covered with an elastic protective layer.

3. The gypsum board production apparatus according to claim 1, characterized in that, The control mechanism includes a plurality of control sliders slidably arranged on each end seat, and a first elastic element is provided between the control slider and the end seat; an end plate is also fixedly connected to the frame at a position corresponding to the end of the flip plate main shaft, and a limiting component is provided on the end plate; each control slider corresponds to a pair of flip plate blades, and an extrusion element is provided on the control slider; During the feeding process, based on the pushing action of the gypsum board, the control slider drives the extruder to squeeze each pair of flap blades closer to each other and clamp the gypsum board, and the limiting component restricts the control slider from moving away from the center of the end seat. During the feeding stroke, the limiting component removes its restriction on the control slider. Based on the rebound force of the first elastic element, the control slider drives the extrusion component to remove its extrusion force on the flap blades, and at the same time pushes the gypsum board away from each pair of flap blades.

4. The gypsum board production apparatus according to claim 3, characterized in that, The extrusion component includes two extrusion blocks on each control slider, and each flap blade is provided with an extrusion groove. The two extrusion blocks are slidably arranged in the two extrusion grooves on each pair of flap blades, and the extrusion grooves are inclined. During the stroke when the control slider is squeezed by the gypsum board toward the center of the end seat, the flap blades gradually come into contact with the gypsum board based on the extrusion force of the extrusion blocks on the extrusion grooves.

5. The gypsum board production apparatus according to claim 4, characterized in that, The limiting component includes a limiting slider that is slidably arranged on each control slider, and a second elastic element is provided between the limiting slider and the corresponding control slider. A first limiting groove is provided on the end plate, and an inlet section and an outlet section are respectively provided at both ends of the first limiting groove. During the feeding process, the limit slider enters the first limit groove along the inlet section; During the feeding stroke, the limit slider moves away from the first limit groove along the exit section.

6. The gypsum board production apparatus according to claim 5, characterized in that, One end of the extrusion groove is provided with an extension groove, and the first limiting groove is wider than the limiting slider.

7. The gypsum board production apparatus according to claim 5, characterized in that, The sliding direction of the limiting slider in the entry section is parallel to the direction in which the gypsum board enters each pair of flap blades; the sliding direction of the limiting slider in the exit section is parallel to the direction in which the gypsum board moves away from each pair of flap blades.

8. The gypsum board production apparatus according to claim 7, characterized in that, The end plate is also provided with a second limiting groove. Along the axial direction of the end plate, the depth of the second limiting groove is greater than the depth of the first limiting groove, and the second limiting groove connects the inlet section and the outlet section.

9. The gypsum board production apparatus according to claim 5, characterized in that, It also includes a centering mechanism, which corrects the position of the gypsum board as it enters each pair of flap blades during the sliding stroke of the limit slider along the entry section.

10. A method for producing gypsum board, based on the gypsum board production apparatus according to any one of claims 1-9, characterized in that, The gypsum board production method includes the following steps: The gypsum board is fed into the machine and conveyed to each set of flip-plate blades. At the same time, the centering mechanism corrects the position of the gypsum board. Then, the control mechanism controls each pair of flip-plate blades to move closer to each other and clamp the gypsum board. To flip the plasterboard, the main shaft of the flipping plate rotates, causing the clamped plasterboard to flip half a turn. After the gypsum board is fed and flipped, the control mechanism moves each pair of blades away from each other to remove the clamps on the gypsum board. The gypsum board is then conveyed away from each set of flipping blades.

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