Stacking machine for light wallboard production

Abstract

The invention belongs to the technical field of stacking, and particularly discloses a light wallboard production stacker crane which comprises a conveying belt assembly, a material receiving assembly is arranged at the front end of the conveying belt assembly in the output direction, a vacuum suction cup type stacker crane is arranged on the side face of the material receiving assembly, and the material receiving assembly comprises a frame. A plurality of rollers are evenly arranged at the top end of the interior of the frame, a lifting mechanism is arranged in the frame and located between every two adjacent rollers, and stabilizing mechanisms are arranged on the two sides of the frame. Through cooperation of the lifting mechanism and the stabilizing mechanism, the light wall plate can be supported more stably, the light wall plate and the suction cup can be attached more tightly, vacuum forming is accelerated, meanwhile, the light wall plate can be aligned to the middle of the frame, and an accurate positioning reference is provided for the stacker crane.

Description

Technical Field

[0001] The present invention belongs to the technical field of palletizing, and specifically discloses a palletizer for the production of lightweight wall panels. Background Art

[0002] A palletizer is an industrial automation device mainly used to automatically stack packaged goods on pallets or skids in a preset arrangement to form a regular stack shape for subsequent transportation or warehousing.

[0003] In the existing palletizer for the production of lightweight wall panels, when the vacuum suction cup of the palletizer contacts the lightweight wall panel, its pressure will press the lightweight wall panel downward, resulting in the surface of the lightweight wall panel sagging, causing adsorption failure and possibly damaging the lightweight wall panel. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a palletizer for the production of lightweight wall panels to solve the problem that when the vacuum suction cup of the palletizer in the prior art contacts the lightweight wall panel, its pressure will press the lightweight wall panel downward, resulting in the surface of the lightweight wall panel sagging, causing adsorption failure and possibly damaging the lightweight wall panel.

[0005] To achieve the above object, the present invention provides a palletizer for the production of lightweight wall panels, including a conveyor belt assembly. At the front end of the output direction of the conveyor belt assembly, there is a material receiving assembly. On the side of the material receiving assembly, there is a palletizer. The palletizer is of a vacuum suction cup type. The material receiving assembly includes a frame. At the top end inside the frame, a plurality of rollers are arranged evenly. Inside the frame and between two adjacent rollers, there is a lifting mechanism for lifting the lightweight wall panel from the surface of the roller. On both sides of the frame, there is a stabilizing mechanism for positioning the lightweight wall panel. Above the conveyor belt assembly, a visual inspection mechanism is installed. The lifting mechanism includes a cross plate movably arranged between two adjacent rollers. At the four end corners of the cross plate, connecting plates are connected through rotating shafts. Between two opposite connecting plates, a folding plate is fixedly connected. The folding plate is parallel to the roller. Inside the inner wall of the frame and on the side of the lifting mechanism, there are path grooves symmetrically opened in two. On the top of the connecting plate, there is a sliding column. The two connecting plates on the same side are respectively slidably installed in the two path grooves through the sliding column. The path groove includes a vertical groove and a parallel groove. The vertical groove is perpendicular to the bottom surface of the frame, and the parallel groove is parallel to the bottom surface of the frame. The top of the vertical groove is connected to the parallel groove through an arc groove.

[0006] In the above technical solution, preferably, side plates are provided on both sides of the bottom of the frame, T-shaped sliders are provided on the surfaces of the side plates, the stabilizing mechanism includes an L-shaped clamping block, the bottom of the L-shaped clamping block is slidably matched with the T-shaped slider, the top of the L-shaped clamping block is slidably clamped on the top of the frame, a pull column is provided at the middle end of the bottom of the L-shaped clamping block, and the pull column movably penetrates through the frame.

[0007] In the above technical solution, preferably, a lifting plate is provided at the middle end inside the frame, a limiting groove is formed on the inner wall of the frame, a convex block is provided on the side surface of the lifting plate, the convex block is slidably installed inside the limiting groove, a support column is provided on the top of the lifting plate, the support column is fixedly connected to the cross plate, a first inclined block is provided at the bottom of the lifting plate, two first sliding strips are symmetrically provided at the bottom of the first inclined block, a triangular sliding groove is formed inside the inner side of the first sliding strip, a second inclined block is installed in cooperation with the bottom of the first inclined block, two second sliding strips are symmetrically provided at the top of the second inclined block, a triangular sliding block is fixedly installed on the outer side of the second sliding strip, the triangular sliding block is slidably installed in the triangular sliding groove, a cylinder is provided inside the frame and close to one side of the conveyor belt assembly, and the output end of the cylinder is connected to the second inclined block.

[0008] In the above technical solution, preferably, movable grooves are formed on both sides of the second inclined block, movable blocks are slidably arranged inside the movable grooves, one end of the movable block close to the inner wall of the frame is installed with a connecting rod through a rotating shaft, a cylindrical block is provided at one end of the pull column inside the frame, and the other end of the connecting rod is connected to the cylindrical block through a rotating shaft.

[0009] In the above technical solution, preferably, an L-shaped blocking block is installed on the surface of the cylindrical block close to the conveyor belt assembly through bolts, and the top of the L-shaped blocking block is used to block the connecting rod.

[0010] In the above technical solution, preferably, a front plate is installed at the front end of the frame, the top of the front plate protrudes from the frame, and a blocking surface is provided on the surface of the front plate.

[0011] In the above technical solution, preferably, vertical plates are fixedly installed on both sides of the conveyor belt assembly, a cleaning roller is rotatably installed between the two vertical plates, the cleaning roller is above the conveyor belt assembly, a synchronization mechanism is installed on the side surface of the conveyor belt assembly, and the synchronization mechanism is matched with the cleaning roller.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The path groove of the lifting mechanism is uniquely designed, including a vertical groove and a parallel groove. When the cross plate rises and drives the sliding column on the connecting plate to slide in the vertical groove, the folding plate can rise vertically. When the sliding column reaches the top of the vertical groove and enters the parallel groove through the arc groove, the movement direction of the folding plate changes from vertical rising to horizontal movement, and finally gradually becomes in the same straight line as the cross plate. This horizontal movement design enables the folding plate and the cross plate to form a larger support surface, which can support the lightweight wallboard more stably. During the subsequent process of cooperating with the palletizing machine to transfer the lightweight wallboard, the stable support can ensure that the lightweight wallboard does not shake when being vacuum adsorbed, providing a strong guarantee for the smooth completion of the palletizing operation. At the same time, when the suction cup just contacts the lightweight wallboard, the downward pressure of the palletizing machine will not cause the lightweight wallboard to sag, enabling the lightweight wallboard to fit more closely with the suction cup and accelerating the formation of vacuum; The L-shaped clamping block of the stabilizing mechanism can move flexibly in the width direction of the frame, forming a stable clamping structure, which can effectively prevent the lightweight wallboard from shaking or shifting during the operation of the palletizing machine, ensuring that the wallboard remains in a stable state throughout the palletizing process. At the same time, it can align the lightweight wallboard in the middle of the frame, and the stabilizing mechanism provides an accurate positioning reference for the palletizing machine. Brief Description of the Drawings

[0013] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the structure of the palletizing machine of the present invention; Figure 3 is a schematic diagram of the structure of the conveyor belt assembly and the material receiving assembly of the present invention; Figure 4 is a schematic diagram of the structure of the material receiving assembly of the present invention; Figure 5 is a schematic diagram of the internal structure of the material receiving assembly of the present invention; Figure 6 is a schematic diagram of the internal structure of the material receiving assembly from another perspective of the present invention; Figure 7 is of the present invention Figure 6 an enlarged view of part A; Figure 8 is of the present invention Figure 6 an enlarged view of part B.

[0014] In the figure: 1, palletizer; 2, conveyor belt assembly; 3, material receiving assembly; 4, vertical plate; 5, synchronization mechanism; 6, cleaning roller; 7, frame; 8, roller; 9, front plate; 10, baffle surface; 11, lifting mechanism; 12, stabilizing mechanism; 13, lifting plate; 14, support column; 15, cross plate; 16, connecting plate; 17, folding plate; 18, sliding column; 19, vertical groove; 20, parallel groove; 21, limit groove; 22, first inclined block; 23, first slide bar; 24, triangular chute; 25, second inclined block; 26, second slide bar; 27, triangular slider; 28, movable groove; 29, movable block; 30, connecting rod; 31, L-shaped baffle; 32, pulling column; 33, side plate; 34, T-shaped slider; 35, L-shaped clamping block; 36, cylinder. Detailed implementation mode

[0015] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation modes.

[0016] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the limitations of the specific embodiments disclosed below.

[0017] As Figures 1-8 shown, a palletizer for the production of lightweight wallboards includes a conveyor belt assembly 2. At the front end of the output direction of the conveyor belt assembly 2, there is a material receiving assembly 3. A palletizer 1 is arranged on the side of the material receiving assembly 3. The palletizer 1 is of a vacuum suction cup type. The material receiving assembly 3 includes a frame 7. A plurality of rollers 8 are evenly arranged at the top end inside the frame 7. A lifting mechanism 11 is arranged between two adjacent rollers 8 inside the frame 7. The lifting mechanism 11 is used to lift the lightweight wallboard from the surface of the roller 8. Stabilizing mechanisms 12 are arranged on both sides of the frame 7. The stabilizing mechanisms 12 are used to position the lightweight wallboard. Through the cooperation of the lifting mechanism 11 and the stabilizing mechanisms 12, the lightweight wallboard can be supported more stably, so that the lightweight wallboard can fit more closely with the suction cup, accelerating the formation of vacuum, providing a strong guarantee for the smooth completion of the palletizing operation. At the same time, the lightweight wallboard can be aligned in the middle of the frame 7, providing an accurate positioning reference for the palletizer 1. A visual inspection mechanism is installed above the conveyor belt assembly 2. The visual inspection mechanism can accurately detect defects such as flaws, cracks, holes, and color differences on the surface of the lightweight wallboard by using advanced image recognition and analysis technologies.

[0018] The lifting mechanism 11 includes a cross plate 15. The cross plate 15 is movably arranged between two adjacent rollers 8. Connecting plates 16 are connected to the four end corners of the cross plate 15 through rotating shafts. Folding plates 17 are fixedly connected between two opposite connecting plates 16. The folding plates 17 are parallel to the rollers 8. Path grooves are formed on the inner wall of the frame 7 and on the side of the lifting mechanism 11. Two path grooves are symmetrically arranged. A sliding column 18 is arranged on the top of the connecting plate 16. The two connecting plates 16 on the same side are respectively slidably installed in the two path grooves through the sliding column 18. The path groove includes a vertical groove 19 and a parallel groove 20. The vertical groove 19 is perpendicular to the bottom surface of the frame 7, and the parallel groove 20 is parallel to the bottom surface of the frame 7. The top of the vertical groove 19 is connected to the parallel groove 20 through an arc groove. When the cross plate 15 of the lifting mechanism 11 rises, the folding plate 17 is driven by the connecting plate 16 to move along the path groove. Due to the special design of the path groove, at the beginning, the sliding column 18 slides in the vertical groove 19, so that the folding plate 17 can rise vertically, and the lightweight wallboard can be smoothly lifted from the surface of the roller 8. When the sliding column 18 reaches the top of the vertical groove 19 and enters the parallel groove 20 through the arc groove, the moving direction of the folding plate 17 changes from vertical rising to horizontal movement, so that after the folding plate 17 completes the lifting action, it can move horizontally, and the folding plate 17 gradually becomes in the same straight line as the cross plate 15. This design can support the lightweight wallboard more stably, providing convenience for the subsequent transfer of the lightweight wallboard in cooperation with the palletizer 1, and improving the coherence and efficiency of the entire work process.

[0019] Side plates 33 are arranged on both sides of the bottom of the frame 7. T-shaped sliders 34 are arranged on the surfaces of the side plates 33. The stabilizing mechanism 12 includes L-shaped clamping blocks 35. The bottom of the L-shaped clamping blocks 35 is slidably matched with the T-shaped sliders 34. The top of the L-shaped clamping blocks 35 is slidably clamped on the top of the frame 7. A pull column 32 is arranged in the middle of the bottom of the L-shaped clamping blocks 35. The pull column 32 movably penetrates through the frame 7. The L-shaped clamping blocks 35 can flexibly move in the width direction of the frame 7, forming a stable clamping structure, which can push the lightweight wallboard towards the middle of the frame 7. While ensuring the stability of the lightweight wallboard, it can also align the lightweight wallboard in the middle of the frame 7, preventing the lightweight wallboard from shaking or shifting during the operation of the palletizer 1, and ensuring the neatness and stability of the palletizing.

[0020] There is a lifting plate 13 arranged in the middle inside the frame 7. A limiting groove 21 is formed on the inner wall of the frame 7. A convex block is arranged on the side of the lifting plate 13, and the convex block is slidably installed inside the limiting groove 21. A support column 14 is arranged on the top of the lifting plate 13, and the support column 14 is fixedly connected to the cross plate 15. A first inclined block 22 is arranged at the bottom of the lifting plate 13. Two first sliding strips 23 are symmetrically arranged at the bottom of the first inclined block 22. A triangular sliding groove 24 is formed on the inner side of the first sliding strip 23. A second inclined block 25 is fitted and installed at the bottom of the first inclined block 22. Two second sliding strips 26 are symmetrically arranged at the top of the second inclined block 25. A triangular sliding block 27 is fixedly installed on the outer side of the second sliding strip 26, and the triangular sliding block 27 is slidably installed in the triangular sliding groove 24. A cylinder 36 is arranged inside the frame 7 and on the side close to the conveyor belt assembly 2. The output end of the cylinder 36 is connected to the second inclined block 25. Through the cooperation of the first inclined block 22 and the second inclined block 25 with the first sliding strip 23, the second sliding strip 26, the triangular sliding groove 24 and the triangular sliding block 27, an inclined plane transmission structure is formed. This structure can convert the linear motion of the cylinder 36 into the vertical upward movement of the lifting plate 13, realizing the effective transmission of power. The transmission effect is stable and efficient. Through the sliding cooperation of the side convex block of the lifting plate 13 and the limiting groove 21, the lifting plate 13 can stably slide along a specific path inside the frame 7, ensuring the linearity and stability of the lifting action. The support column 14 firmly connects the lifting plate 13 and the cross plate 15, enhancing the integrity of the structure, enabling the lifting force to be evenly transmitted. When the first inclined block 22 moves upward, the lifting plate 13 can synchronously lift the cross plate 15 upward through the support column 14, so that the lifting mechanism 11 works.

[0021] Activity grooves 28 are formed on both sides of the second inclined block 25. An activity block 29 is slidably arranged inside the activity grooves 28. One end of the activity block 29 close to the inner wall of the frame 7 is installed with a connecting rod 30 through a rotating shaft. A cylindrical block is arranged at one end of the pull column 32 inside the frame 7. The other end of the connecting rod 30 is connected to the cylindrical block through a rotating shaft. When the cylinder 36 acts to push the second inclined block 25 to move forward in the frame 7, the activity blocks 29 in the activity grooves 28 on both sides of the second inclined block 25 slide in the activity grooves 28 as the second inclined block 25 moves. When the activity block 29 reaches the rearmost side of the activity groove 28, the activity groove 28 will drive the activity block 29 to move forward. The sliding of the activity block 29 drives the connecting rod 30 to rotate through the rotating shaft. The other end of the connecting rod 30 is connected to the pull column 32. Thus, as the connecting rod 30 rotates, the pull column 32 will be gradually pulled into the frame 7, and the L-shaped clamping block 35 will move synchronously towards the frame 7.

[0022] An L-shaped stopper 31 is installed on the surface of the cylindrical block close to the conveyor belt assembly 2 by bolts. The top of the L-shaped stopper 31 is used to block the connecting rod 30. The L-shaped stopper 31 can limit the rotation range of the connecting rod 30 and form a physical block on the reverse rotation path of the connecting rod 30 to prevent the connecting rod 30 from flipping.

[0023] A front plate 9 is installed at the front end of the frame 7. The top of the front plate 9 protrudes from the frame 7. A blocking surface 10 is provided on the surface of the front plate 9. The top of the front plate 9 protrudes from the frame 7 and is provided with the blocking surface 10, which can effectively block the continuous forward sliding of the wallboard when the lightweight wallboard is conveyed to the front end of the receiving assembly 3, prevent the wallboard from accidentally falling from the front end of the frame 7, ensure the stability and safety of the receiving process, and reduce production interruptions and material losses caused by the falling of the wallboard.

[0024] Vertical plates 4 are fixedly installed on both sides of the conveyor belt assembly 2. A cleaning roller 6 is rotatably installed between the two vertical plates 4. The cleaning roller 6 is located above the conveyor belt assembly 2. A synchronization mechanism 5 is installed on the side of the conveyor belt assembly 2. The synchronization mechanism 5 cooperates with the cleaning roller 6. The cleaning roller 6 is located above the conveyor belt assembly 2. During the operation of the conveyor belt, under the action of the synchronization mechanism 5, the cleaning roller 6 will continuously roll, which can effectively clean impurities such as debris, dust, and small pieces of corner materials remaining during the production of lightweight wallboards on the conveyor belt, prevent the accumulation of impurities from affecting the conveying quality of lightweight wallboards, prevent impurities from mixing into the wallboard products and affecting the product quality, and enable the vacuum suction cup palletizer 1 to work more smoothly.

[0025] Working principle: First, the lightweight wallboard is placed on the conveyor belt assembly 2, and the conveyor belt assembly 2 conveys it forward. At the same time, the visual inspection mechanism can detect the surface of the unqualified lightweight wallboard. During this process, the cleaning roller 6 above the conveyor belt assembly 2 rolls continuously under the action of the synchronization mechanism 5 to clean impurities such as debris, dust, and small pieces of corner materials remaining during the production of the lightweight wallboard on the conveyor belt. The lightweight wallboard is conveyed to the receiving assembly 3. When the wallboard is conveyed to the front end of the receiving assembly 3, the top of the front plate 9 protrudes from the frame 7 and the blocking surface 10 on the surface effectively blocks the wallboard from continuing to slide forward, preventing the wallboard from accidentally falling from the front end of the frame 7. The wallboard stays on the roller 8 inside the frame 7. Then, the air cylinder 36 is started, and the output end of the air cylinder 36 pushes the second inclined block 25 to move forward in the direction of the frame 7. Through the cooperation of the first inclined block 22, the second inclined block 25, the first slide bar 23, the second slide bar 26, the triangular chute 24, and the triangular slider 27, the linear motion of the air cylinder 36 is converted into the vertical upward movement of the lifting plate 13. The lifting plate 13 slides stably upward along a specific path inside the frame 7 through the sliding cooperation of the side convex blocks and the limiting groove 21. The support column 14 at the top of the lifting plate 13 synchronously lifts the cross plate 15 upward. Subsequently, the connecting plate 16 connected by the rotating shafts at the four end corners drives the folding plate 17 to move along the path groove. At the beginning, the sliding column 18 slides in the vertical groove 19, causing the folding plate 17 to rise vertically and smoothly lift the lightweight wallboard from the surface of the roller 8. During this process, the movable block 29 in the movable groove 28 on both sides of the second inclined block 25 slides in the movable groove 28 as it moves, and the movable block 29 reaches the rearmost side of the movable groove 28. Then, when the sliding column 18 reaches the top of the vertical groove 19 and enters the parallel groove 20 through the arc groove, the movement direction of the folding plate 17 changes from vertical upward to horizontal movement, and the folding plate 17 gradually becomes in the same straight line as the cross plate 15, stably supporting the lightweight wallboard. During this process, the movable block 29 is driven to move forward, and the sliding of the movable block 29 drives the connecting rod 30 to rotate through the rotating shaft. The connecting rod 30 rotates and pulls the pull column 32 into the interior of the frame 7, and the L-shaped clamping block 35 moves synchronously in the direction of the frame 7, pushing and positioning the lightweight wallboard towards the middle of the frame 7. Finally, the vacuum suction type palletizer 1 works. The vacuum suction cups correspond to the cross plate 15 and the folding plate 17, adsorbing the lightweight wallboard that has been positioned and lifted by the lifting mechanism 11. When the lightweight wallboard is adsorbed, the lifting mechanism 11 and the stabilizing mechanism 12 gradually return to their original states, and the palletizer 1 then transfers and stacks the lightweight wallboard. For the detected unqualified lightweight wallboards, the system transmits the data to the palletizer 1, and the visual inspection mechanism is linked with the palletizer 1 to transfer the detected unqualified lightweight wallboards to the other side, realizing the automatic classification and processing of products of different qualities.

[0026] 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 by the above embodiments, and what is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A palletizer for producing lightweight wallboards, including a conveyor belt assembly, characterized in that, At the front end of the output direction of the conveyor belt assembly, there is a material receiving assembly. A palletizer is arranged on the side of the material receiving assembly. The palletizer is of the vacuum sucker type. The material receiving assembly includes a frame. At the top end inside the frame, a plurality of rollers are arranged in a uniform row. An elevating mechanism is arranged between adjacent two rollers inside the frame. The elevating mechanism is used to lift the lightweight wallboard from the surface of the rollers. Stabilizing mechanisms are arranged on both sides of the frame. The stabilizing mechanisms are used to position the lightweight wallboard. A visual inspection mechanism is installed above the conveyor belt assembly; The elevating mechanism includes a cross plate. The cross plate is movably arranged between two adjacent rollers. Connecting plates are connected to the four end corners of the cross plate through rotating shafts. Folding plates are fixedly connected between two opposite connecting plates. The folding plates are parallel to the rollers. Path grooves are opened on the inner wall of the frame on the side of the elevating mechanism. Two path grooves are symmetrically opened. Sliding columns are arranged on the top of the connecting plates. The two connecting plates on the same side are respectively slidably installed in the two path grooves through the sliding columns. The path grooves include vertical grooves and parallel grooves. The vertical grooves are perpendicular to the bottom surface of the frame. The parallel grooves are parallel to the bottom surface of the frame. The top of the vertical groove is connected to the parallel groove through an arc groove.

2. The palletizer for producing lightweight wallboards according to claim 1, characterized in that, Side plates are arranged on both sides of the bottom of the frame. T-shaped sliders are arranged on the surfaces of the side plates. The stabilizing mechanism includes L-shaped clamping blocks. The bottoms of the L-shaped clamping blocks are slidably matched with the T-shaped sliders. The tops of the L-shaped clamping blocks are slidably clamped on the tops of the frames. A pull column is arranged in the middle of the bottom of the L-shaped clamping block. The pull column movably penetrates through the frame.

3. The palletizer for producing lightweight wallboards according to claim 2, characterized in that, A lifting plate is arranged in the middle inside the frame. A limiting groove is opened on the inner wall of the frame. A convex block is arranged on the side of the lifting plate. The convex block is slidably installed inside the limiting groove. A support column is arranged on the top of the lifting plate. The support column is fixedly connected to the cross plate. A first inclined block is arranged at the bottom of the lifting plate. Two first sliding strips are symmetrically arranged at the bottom of the first inclined block. Triangular sliding grooves are opened on the inner sides of the first sliding strips. A second inclined block is installed in cooperation with the bottom of the first inclined block. Two second sliding strips are symmetrically arranged at the top of the second inclined block. Triangular sliding blocks are fixedly installed on the outer sides of the second sliding strips. The triangular sliding blocks are slidably installed in the triangular sliding grooves. A cylinder is arranged inside the frame and close to the conveyor belt assembly. The output end of the cylinder is connected to the second inclined block.

4. The palletizer for producing lightweight wallboards according to claim 3, characterized in that, Moving grooves are opened on both sides of the second inclined block. Moving blocks are slidably arranged inside the moving grooves. One end of the moving block close to the inner wall of the frame is installed with a connecting rod through a rotating shaft. A cylindrical block is arranged at one end of the pull column inside the frame. The other end of the connecting rod is connected to the cylindrical block through a rotating shaft.

5. A palletizer for producing lightweight wallboards according to claim 4, characterized in that, An L-shaped stop block is installed on the surface of the cylindrical block close to the conveyor belt assembly through a bolt. The top of the L-shaped stop block is used to block the connecting rod.

6. The palletizer for producing lightweight wallboards according to claim 1, characterized in that, A front plate is installed at the front end of the frame. The top of the front plate protrudes from the frame. A blocking surface is arranged on the surface of the front plate.

7. A palletizer for producing lightweight wallboards according to claim 1, characterized in that, Vertical plates are fixedly installed on both sides of the conveyor belt assembly. A cleaning roller is rotatably installed between the two vertical plates. The cleaning roller is located above the conveyor belt assembly. A synchronization mechanism is installed on the side of the conveyor belt assembly, and the synchronization mechanism is matched with the cleaning roller.

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