A gypsum slurry spreading device

Abstract

This application discloses a gypsum slurry spreading device, relating to the field of gypsum board production technology. It includes: a guide box with a guide cavity inside, one end of which is connected to a discharge pipe for outputting gypsum slurry, and the other end having a discharge port; a spreading roller rotatably disposed within the guide box, with the spreading roller arranged along the width of the guide box, and multiple spreading blades spirally arranged on the spreading roller, with the spreading blades at both ends of the spreading roller rotating in opposite directions; a drive unit, connected to the spreading roller for driving its rotation; and a leveling component disposed downstream of the guide box for leveling the gypsum slurry. During operation, the drive unit drives the spreading roller to rotate, and the spreading blades on the spreading roller push the gypsum slurry towards both ends of the spreading roller, ensuring that the gypsum slurry is distributed as evenly as possible within the guide box, and then discharged from the discharge port. This effectively prevents the gypsum slurry from accumulating in the middle, facilitating even spreading and improving spreading efficiency.

Description

Technical Field

[0001] This application relates to the field of gypsum board production technology, and in particular to a gypsum slurry spreading device. Background Technology

[0002] As a building material, gypsum board requires gypsum slurry to be evenly spread on the surface of the board during the production process to ensure good production quality.

[0003] Chinese Patent No. CN221518214U discloses a gypsum board production slurry uniform spreading device, including a fixed frame. The fixed frame has a first transmission roller movably mounted on both sides of its lower surface via a rotating shaft. A transmission belt is sleeved on the outer side of the first transmission roller. The fixed frame has a second transmission roller movably mounted on its upper outer surface via a rotating shaft. The upper end of the transmission belt is provided with a lower paperboard. The lower outer surface of the second transmission roller is provided with an upper paperboard. A connecting pipe is provided on one side of the upper end of the transmission belt. The fixed frame has a spreading mechanism for spreading gypsum slurry.

[0004] During the paving process, the slurry tends to accumulate at the outlet of the connecting pipe, making it difficult to spread evenly in a short time and reducing paving efficiency. Utility Model Content

[0005] To facilitate even spreading and improve spreading efficiency, this application provides a gypsum slurry spreading device.

[0006] This application provides a gypsum slurry spreading device, which adopts the following technical solution:

[0007] A gypsum slurry spreading device, comprising:

[0008] A material guide box, wherein a material guide cavity is provided inside the material guide box, one end of the material guide box is connected to a discharge pipe for discharging gypsum slurry, and the other end is provided with a discharge port;

[0009] A paving roller is rotatably disposed inside the guide box, and the paving roller is arranged along the width direction of the guide box. Multiple paving blades are spirally arranged on the paving roller, and the paving blades at both ends of the paving roller rotate in opposite directions.

[0010] A driving component, which is connected to the paving roller, is used to drive the paving roller to rotate;

[0011] A leveling component, located downstream of the feed box, is used to level the gypsum slurry.

[0012] By adopting the above technical solution, during operation, the gypsum slurry enters the guide box from the discharge pipe. The drive unit drives the paving roller to rotate, and the paving blades on the paving roller push the gypsum slurry towards both ends of the roller, ensuring that the gypsum slurry is distributed as evenly as possible within the guide box. It then exits from the discharge port, and the leveling component smooths the top surface of the gypsum slurry. This effectively prevents the gypsum slurry from accumulating in the middle, facilitating even paving, and eliminates the need for the gypsum slurry to automatically spread to both sides due to its own fluidity, thus improving paving efficiency.

[0013] Optionally, the guide box includes an extension section and a paving section that are interconnected. The end of the extension section away from the paving section is connected to the discharge pipe. The paving roller is disposed within the paving section. The width of the extension section gradually increases from the end closer to the connecting pipe to the end closer to the paving section.

[0014] Optionally, at least one guide plate is provided in the extended section, and the guide plate extends in the direction of gypsum slurry flow.

[0015] Optionally, the guide plate includes a first guide plate and at least two second guide plates, the second guide plates being located on both sides of the first guide plate; the second guide plates are inclined, and the distance between the second guide plates and the first guide plate gradually increases from the end closer to the connecting pipe to the end farther away from the connecting pipe.

[0016] Optionally, the discharge port of the material guide box is provided with a downwardly inclined guide plate.

[0017] Optionally, a heating assembly for heating the paving rollers may also be included.

[0018] By adopting the above technical solution, the paving roller is heated by the heating component, thereby achieving the purpose of heating the gypsum slurry, maintaining the gypsum slurry at a temperature with better fluidity, facilitating uniform paving, improving the fluidity of the gypsum slurry, and increasing paving efficiency.

[0019] Optionally, the inner wall of the feed box is provided with an anti-stick layer.

[0020] Optionally, the leveling assembly includes a scraper, which is slidably disposed on the guide box along the height direction of the guide box, and the guide box is provided with a lifting component for driving the scraper to rise and fall.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. During operation, gypsum slurry enters the guide box from the discharge pipe. The drive unit rotates the paving roller, and the paving blades on the roller push the gypsum slurry towards both ends, ensuring that the gypsum slurry is distributed as evenly as possible within the guide box. It then exits from the discharge port, and the leveling component smooths the surface of the gypsum slurry. This effectively prevents gypsum slurry from accumulating in the middle, facilitating even spreading and improving paving efficiency by eliminating the need for the gypsum slurry's inherent fluidity to automatically spread to the sides.

[0023] 2. The paving roller is heated by the heating component, thereby heating the gypsum slurry to maintain it at a temperature with optimal fluidity, facilitating even paving, improving the fluidity of the gypsum slurry, and increasing paving efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0025] Figure 2 This is a schematic diagram illustrating the structure of the paving device, which is the main embodiment of this application.

[0026] Figure 3 This is a schematic diagram illustrating the structure of the guide box, which is the main embodiment of this application.

[0027] Figure 4 This is a cross-sectional view of the feed box in an embodiment of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Conveyor; 11. Frame; 111. Fixing plate; 112. Unwinding roller; 12. Conveying roller; 13. Conveyor belt; 2. Guide box; 21. Discharge pipe; 22. Discharge port; 221. Guide vane; 23. Extension section; 24. Paving section; 25. Drive motor; 3. Scraper; 4. Paving roller; 41. Paving blade; 42. Rotating shaft; 421. Collar; 51. First guide plate; 52. Second guide plate; 6. Heating assembly; 61. Hot air source; 62. Air inlet pipe; 63. Air outlet pipe; 7. Guide rod; 71. Lifting plate; 72. Mounting plate; 8. Lifting cylinder; 9. Slurry thickness detection sensor. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0031] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0033] This application discloses a gypsum slurry spreading device.

[0034] Reference Figure 1 A gypsum slurry spreading device includes a conveyor 1, a guide box 2, and a leveling assembly. The conveyor 1 includes a frame 11, a conveyor roller 12, a conveyor belt 13, and a conveyor motor. The conveyor roller 12 is rotatably mounted on the frame 11, and the conveyor belt 13 is wound around the conveyor roller 12. The conveyor motor is fixedly mounted on the frame 11, and its output shaft is fixedly connected to the conveyor roller 12. A lower cardboard is laid on the conveyor belt 13, and a unwinding roller 112 for unwinding the upper cardboard is provided above the conveyor 1. The guide box 2 is fixedly mounted on the frame 11 by a fixing plate 111.

[0035] Among them, reference Figure 2 and Figure 3The guide box 2 has a guide cavity inside. One end of the guide box 2 is connected to a discharge pipe 21 for discharging gypsum slurry, and the other end is provided with a discharge port 22. The guide box 2 includes an extension section 23 and a paving section 24 that are connected to each other. The end of the extension section 23 away from the paving section 24 is connected to the discharge pipe 21. The paving roller 4 is disposed in the paving section 24. The width of the extension section 23 gradually increases from the end closer to the connecting pipe to the end closer to the paving section 24.

[0036] Optional, refer to Figure 3 and Figure 4 A paving roller 4 is rotatably arranged inside the guide box 2, and the paving roller 4 is arranged along the width direction of the guide box 2. The width direction of the guide box 2 is perpendicular to the conveying direction of the conveyor 1. Multiple paving blades 41 are spirally arranged on the paving roller 4, and the paving blades 41 at both ends of the paving roller 4 rotate in opposite directions.

[0037] Furthermore, the paving blades 41 adopt a variable pitch design. The pitch of the paving blades 41 in the middle of the paving roller 4 is 50-80mm, and the pitch at both ends gradually decreases to 30-50mm. Because the gypsum slurry in the middle is thicker, the larger pitch in the middle increases the volume of the slurry being pushed, allowing the slurry in the middle to gradually disperse on both sides, thus improving the uniformity of the gypsum slurry.

[0038] Reference Figure 3 and Figure 4 The guide box 2 is equipped with a driving component, which is connected to the paving roller 4 for driving the paving roller 4 to rotate. Specifically, the driving component is a drive motor 25, which is fixedly installed on the side wall of the guide box 2, and the output shaft of the drive motor 25 is fixedly connected to the paving roller 4.

[0039] During operation, gypsum slurry enters the guide box 2 from the discharge pipe 21. The drive unit drives the paving roller 4 to rotate, and the paving blades 41 on the paving roller 4 push the gypsum slurry towards both ends of the paving roller 4, so that the gypsum slurry is distributed as evenly as possible in the guide box 2. Then it is discharged from the discharge port 22, and then the leveling component smooths the upper surface of the gypsum slurry. This effectively prevents the gypsum slurry from accumulating in the middle, facilitates even spreading, and does not rely on the fluidity of the gypsum slurry itself to automatically spread to both sides, thus improving paving efficiency.

[0040] Optional, refer to Figure 4 At least one guide plate is provided within the extension section 23, extending in the direction of gypsum slurry flow. The guide plate includes a first guide plate 51 and at least two second guide plates 52, located on either side of the first guide plate 51. The second guide plates 52 are inclined, and the distance between the second guide plates 52 and the first guide plates 51 gradually increases from the end closer to the connecting pipe to the end farther away from the connecting pipe. The guide plates further ensure that the gypsum slurry is evenly distributed within the paving section 24.

[0041] Reference Figure 3 and Figure 4 The discharge port 22 of the guide box 2 is provided with a downwardly inclined guide plate 221. The guide plate 221 has an arc-shaped plate structure, which facilitates the smooth discharge of gypsum slurry from the discharge port 22 and its fall onto the lower cardboard below the guide box along the guide plate 221.

[0042] This embodiment also includes a heating assembly 6 for heating the paving roller 4. The heating assembly 6 includes a hot air source 61, an air inlet pipe 62, and an air outlet pipe 63. A rotating shaft 42 is rotatably inserted inside the paving roller 4. One end of the rotating shaft 42 extending out of the guide box 2 is rotatably connected to a collar 421. The rotating shaft 42 is hollow. One end of the air inlet pipe 62 is connected to the output end of the hot air source 61, and the other end extends into the rotating shaft 42. A serpentine bend is provided at the end extending into the rotating shaft, and the serpentine bend fits against the inner wall of the rotating shaft 42 to facilitate heat transfer. The output end of the serpentine bend is connected to one end of the air outlet pipe 63, and the other end of the air outlet pipe 63 is connected to the input end of the hot air source 61. In this embodiment, the hot air source 61 can generate hot air and may include a fan and heating wires. The heating assembly 6 heats the paving roller 4, thereby heating the gypsum slurry to maintain the gypsum slurry in a temperature range of 35-45°C, improving the fluidity of the gypsum slurry.

[0043] Optionally, the inner wall of the feed box 2 is provided with an anti-stick layer. In this embodiment, the anti-stick layer can be polytetrafluoroethylene, and the surface roughness Ra is controlled to be less than 0.8 μm.

[0044] Optional, refer to Figure 2 The system also includes a leveling component, located downstream of the guide box 2, for leveling the gypsum slurry. The leveling component includes a scraper 3, which is slidably mounted on the guide box 2 along its height. Specifically, a guide rod 7 is fixedly mounted vertically at the top of the guide box 2, and a lifting plate 71 is slidably mounted on the guide rod 7. The lifting plate 71 extends along the conveying direction of the conveyor 1, and the scraper 3 is fixedly mounted on the lifting plate 71, along the width direction of the conveyor belt 13. The guide box 2 is equipped with a lifting component for driving the scraper 3 to rise and fall. The lifting component is a lifting cylinder 8. A mounting plate 72 is fixedly mounted on the top of the guide box 2, located at the top of the guide rod 7. The lifting cylinder 8 is vertically mounted on the mounting plate 72, and its piston rod passes through the mounting plate 72 and is fixedly connected to the lifting plate 71. The lifting cylinder 8 extends and retracts, thereby causing the lifting plate 71 to slide along the guide rod 7, which in turn causes the scraper 3 to rise and fall.

[0045] Optionally, this embodiment also includes a slurry thickness detection sensor 9, located downstream of the leveling assembly, for real-time detection of the thickness of the gypsum slurry layer after leveling. The slurry thickness detection sensor 9 is located at the end of the lifting plate 71 away from the guide box 2, and the slurry thickness detection sensor 9 can be a laser sensor. A controller is electrically connected to the slurry thickness detection sensor 9 and the lifting cylinder 8, and is used to control the lifting cylinder 8 to move up and down. When the slurry thickness detection sensor 9 detects that the slurry layer thickness is greater than a preset thickness threshold, the controller controls the lifting cylinder 8 to drive the scraper 3 downward to reduce the gap between the bottom of the scraper 3 and the lower paperboard, thereby reducing the thickness of the slurry layer; similarly, when the slurry layer thickness is less than the threshold, the controller controls the lifting cylinder 8 to drive the scraper 3 upward to increase the thickness of the slurry layer.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A gypsum slurry spreading device, characterized in that, include: The guide box (2) has a guide cavity inside. One end of the guide box (2) is connected to a discharge pipe (21) for outputting gypsum slurry, and the other end is provided with a discharge port (22). A paving roller (4) is rotatably disposed inside the guide box (2), and the paving roller (4) is disposed along the width direction of the guide box (2). Multiple paving blades (41) are spirally disposed on the paving roller (4), and the paving blades (41) at both ends of the paving roller (4) rotate in opposite directions. A driving component is connected to the paving roller (4) for driving the paving roller (4) to rotate; A leveling component is located downstream of the feed box (2) and is used to level the gypsum slurry.

2. The gypsum slurry spreading device according to claim 1, characterized in that, The guide box (2) includes an extension section (23) and a paving section (24) that are interconnected. The end of the extension section (23) away from the paving section (24) is connected to the discharge pipe (21). The paving roller (4) is disposed in the paving section (24). The width of the extension section (23) gradually increases from the end near the connecting pipe to the end near the paving section (24).

3. A gypsum slurry spreading device according to claim 2, characterized in that, At least one guide plate is provided in the extended section (23), and the guide plate extends in the direction of gypsum slurry flow.

4. A gypsum slurry spreading device according to claim 3, characterized in that, The guide plate includes a first guide plate (51) and at least two second guide plates (52), the second guide plates (52) being located on both sides of the first guide plate (51); the second guide plates (52) are inclined, and the distance between the second guide plates (52) and the first guide plate (51) gradually increases from the end closer to the connecting pipe to the end farther away from the connecting pipe.

5. A gypsum slurry spreading device according to claim 1, characterized in that, The material guide box (2) is provided with a downwardly inclined guide plate (221) at the discharge port (22).

6. A gypsum slurry spreading device according to claim 1, characterized in that, It also includes a heating assembly (6) for heating the paving roller (4).

7. A gypsum slurry spreading device according to claim 1, characterized in that, The inner wall of the feed box (2) is provided with an anti-stick layer.

8. A gypsum slurry spreading device according to claim 1, characterized in that, The leveling assembly includes a scraper (3), which is slidably disposed on the guide box (2) along the height direction of the guide box (2). The guide box (2) is provided with a lifting component for driving the scraper (3) to rise and fall.

Images