Heat insulation baked porcelain aluminum plate and preparation device thereof

Abstract

The invention discloses a heat insulation baked porcelain aluminum plate and a preparation device thereof in the technical field of aluminum plates, the preparation device comprises a device main body, a sintering frame, a placement unit and a fixing assembly, the device main body comprises a sintering chamber and a control chamber, and a driving pair stretching into the sintering chamber is arranged in the control chamber; the sintering frame is arranged in the sintering chamber and comprises a base, guide shafts arranged on one set of opposite angles of the base and threaded shafts arranged on the other set of opposite angles of the base. According to the device, the liftable placing unit is arranged, when the large aluminum plates are sintered, the large aluminum plates on the upper layer and the lower layer are made to get close to each other or get away from each other in a limited gap, the gap of the aluminum plates is reduced or increased, the breathing type effect is formed, airflow is helped to pass through the gap, and the sintering efficiency of the large aluminum plates is improved. And when the gaps are increased, the airflow passing efficiency can be improved, the gaps between the aluminum plates can be evenly heated on the basis of low-gap sintering, and the sintering quality and the sintering efficiency are both achieved.

Description

Technical Field

[0001] The invention relates to the field of aluminum plates, and in particular to a heat-insulating porcelain-baked aluminum plate and a preparation device thereof. Background Art

[0002] Porcelain aluminum plates have achieved breakthroughs in hardness, fire resistance, and environmental protection through inorganic ceramic coating technology. They are particularly suitable for public buildings and special environments with strict requirements on safety and durability. Insulating porcelain aluminum plates are plates with an insulating layer on the back to meet the needs. During production, the main processes include: sandblasting, folding, coating spraying, and sintering.

[0003] Among them, in the sintering process of porcelain aluminum plates, in order to prevent uneven temperature heating from causing inconsistent curing of the layers, a convection device is generally set up for forced convection. However, for the sake of sintering efficiency, the porcelain aluminum plates are generally stacked on a sintering rack, and the gap between adjacent aluminum plates is minimized as much as possible. For large aluminum plates, the stacking gap is too narrow, resulting in difficulty in uniformly heating the gap between the opposite surfaces of the entire aluminum plate even with a convection device, especially when there are many gaps. Increasing the above gaps will lead to a decrease in the number of single sinterings, especially since the insulating porcelain aluminum plates have folded edges, their thickness increases and the gap must also be increased, resulting in a decrease in the number of single sinterings and a significant increase in the average energy consumption cost of sintering. Summary of the Invention

[0004] The purpose of the present invention is to provide a heat-insulating porcelain aluminum plate and a preparation device thereof, which solves the problem of temperature uniformity for large aluminum plates in existing porcelain aluminum plate sintering devices.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions: A preparation device for a heat-insulating porcelain-baked aluminum plate, comprising The device body includes a sintering chamber and a control chamber, wherein the control chamber is provided with a drive pair that is telescopically inserted into the sintering chamber; A sintering rack is provided in the sintering chamber and comprises a base, guide shafts provided on one set of diagonal corners of the base and threaded shafts provided on another set of diagonal corners; The placement unit is provided on the sintering rack for placing the aluminum plate, and includes a frame. Threaded sleeves corresponding to the threaded shafts and guide sleeves corresponding to the guide shafts are provided at the four corners of the frame. The threaded sleeves of adjacent placement units have opposite thread directions. The threaded shafts are driven by a driving pair to reciprocate and rotate, thereby driving adjacent placement units to move closer to / away from each other. A fixing component is used to fix the aluminum plate on the placement unit.

[0006] As a preferred solution of the present invention, the driving pair includes a telescopic part and a motor arranged on the telescopic part. The rotating shaft of the motor enters the sintering chamber, and a docking groove is provided on the rotating shaft. The upper end of the threaded shaft is provided with a driving docking part corresponding to the docking groove. This solution sets up a driving pair so that the rotating output shaft of the motor can penetrate into the high-temperature sintering chamber, and dock with the threaded shaft through telescopic means, so as to drive the threaded shaft to rotate and drive the placement unit to move back and forth.

[0007] As a preferred embodiment of the present invention, the device body further includes a hatch, a track arranged in the sintering chamber, and a convection device for forming an airflow in the sintering chamber. This embodiment is a prior art. The track is used to facilitate the entry of the sintering rack, and the convection device is used to form convection air in the sintering chamber.

[0008] As a preferred solution of the present invention, several first support plates and second support plates are provided in the frame body, a pair of slide grooves are opened on the second support plate, and the fixing component is arranged in the slide groove. This solution arranges a pair of fixing components on the second support plate so that the fixing component can position the aluminum plate placed thereon to prevent it from gradually deviating during lifting and lowering, and the first support plate is used for auxiliary support.

[0009] As a preferred solution of the present invention, the fixing assembly includes a sliding member connected to a sliding groove, a pair of shaft portions arranged on the sliding member, and an extension rod arranged radially on the shaft portion, wherein a torsion spring is arranged on the shaft portion for closing the extension rods with each other, and an elastic member is arranged between the sliding member and the sliding groove for resetting the sliding member to the center of the sliding groove. The sintering rack is also provided with a driving member for first pulling the shaft portion to rotate and then pulling the sliding member to slide in a direction to overcome the elastic member. This solution specifically provides a fixing assembly, which uses two fixing assemblies and a total of four extension rods to support and fix the four inner corners of the aluminum plate fold. The extension rod is first opened and supported on the inner wall of the aluminum plate fold, and then supported on the four corners of the aluminum plate as the sliding member moves to both ends.

[0010] As a preferred solution of the present invention, a guide wheel is provided at the end of the extension rod, a guide rod is provided between the sliding member and the second support plate, and the elastic member is sleeved on the guide rod. In this solution, the extension rod is first unfolded to contact the inner wall of the folded edge of the aluminum plate, and then slides toward the four corners. In order to reduce sliding friction, a guide wheel is provided at the end of each extension rod.

[0011] As a preferred solution of the present invention, the driving component includes a sliding bar slidably arranged at the bottom of the second support plate, the end of the sliding bar is provided with a rack with double-sided teeth, and the end of the shaft is provided with a gear meshing with the rack, and the sliding bar is used to pull the gear to rotate so that the extension rod opens to both sides, and drives the sliding part to slide along the slide groove after the extension rod contacts the inner wall of the aluminum plate. This solution first drives the gear to rotate through the sliding of the sliding bar. When the two ends of the extension rod contact the inner wall of the aluminum plate fold, the gear no longer rotates, and the rack continues to slide toward the two ends of the second support plate with the sliding bar, thereby driving the sliding part to slide along the slide groove, thereby moving the two extension rods toward the four corners of the aluminum plate fold.

[0012] As a preferred solution of the present invention, the driving component also includes a winding wheel arranged on the guide sleeve, the guide shaft is rotatably connected to the base, and is provided with a driving pair for driving, the winding wheel is slidingly connected to the guide shaft, and the end of the sliding bar is provided with a pull rope connected to the winding wheel, and the winding wheel is used to be driven by the guide shaft to rotate so as to drive the sliding bar to slide through the pull rope, wherein the frame is also provided with a steering wheel for guiding the pull rope. Since the driving component operates in the sintering chamber and its sintering temperature is 180-200°C, the sliding bar is driven to slide from the outside through the transmission structure, specifically by driving the guide shaft to rotate, and then driving the winding wheel to rotate through the guide shaft, and the winding wheel reels the pull rope to drive the sliding bar to rotate. In order to be resistant to high temperatures, the pull rope can be made of steel wire rope.

[0013] The present invention also provides an insulating porcelain aluminum plate, which is sintered by any of the above-mentioned preparation devices to obtain a porcelain aluminum plate, and an insulating layer is embedded in the back of the porcelain aluminum plate to obtain the insulating porcelain aluminum plate.

[0014] As a preferred embodiment of the present invention, the thermal insulation layer includes a polyurethane foam layer, an XPS layer, a rock wool layer, a glass wool layer and an aerogel layer.

[0015] The beneficial effects of the present invention are as follows: by setting a liftable placement unit, the present invention can reduce / increase the gap between the aluminum plates by moving the upper and lower large aluminum plates closer to / away from each other within a limited gap during sintering of large aluminum plates, thereby forming a breathing effect to help the airflow pass through the gap, and when the gap is increased, the airflow efficiency can be increased, which is beneficial for uniformly heating the gap between the aluminum plates on the basis of low-gap sintering, and achieves both sintering quality and sintering efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A top view of the sintering rack of the present invention; Figure 3 This is a cross-sectional view of the placement unit and the aluminum plate of the present invention; Figure 4 For the present invention Figure 1 A magnified view of the structure of part A; Figure 5 For the present invention Figure 3 A magnified view of the structure of part B; Figure 6 For the present invention Figure 5 Side view of the middle fixing assembly; Figure 7 Schematic diagram of the threaded shaft and threaded sleeve of the present invention; Figure 8 A schematic diagram of the guide shaft and guide sleeve of the present invention; In the figure: 1. Device body; 11. Sintering chamber; 12. Hatch; 13. Control room; 14. Track; 15. Convection device; 16. Driving pair; 2. Sintering rack; 21. Base; 22. Guide shaft; 23. Threaded shaft; 24. Driving docking member; 3. Placement unit; 31. Frame; 32. First support plate; 33. Second support plate; 34. Slide; 35. Guide sleeve; 36. Threaded sleeve; 4. Driving component; 41. Rack; 42. Sliding bar; 43. Limiting part; 44. Pull rope; 45. Steering wheel; 46. Winding wheel; 5. Fixing assembly; 51. Sliding member; 52. Shaft; 53. Extension rod; 54. Guide wheel; 55. Gear; 56. Torsion spring; 57. Guide rod; 58. Elastic member; 6. Aluminum plate. DETAILED DESCRIPTION

[0017] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0018] Example 1 like Figure 1-8 As shown, a preparation device for a heat-insulating porcelain-baked aluminum plate includes: The device body 1 includes a sintering chamber 11 and a control chamber 13. The control chamber 13 is provided with a drive pair 16 that is telescopically inserted into the sintering chamber 11. The sintering rack 2 is arranged in the sintering chamber 11 and includes a base 21 and guide shafts 22 arranged on one set of diagonal corners of the base 21 and threaded shafts 23 arranged on another set of diagonal corners; The placement unit 3 is provided on the sintering rack 2 for placing the aluminum plate 6. It includes a frame 31. The four corners of the frame 31 are provided with threaded sleeves 36 corresponding to the threaded shafts 23 and guide sleeves 35 corresponding to the guide shafts 22. The threaded sleeves 36 of adjacent placement units 3 have opposite thread directions. The threaded shafts 23 are driven to rotate back and forth by the drive pair 16 to move adjacent placement units 3 closer to or farther away from each other. The fixing assembly 5 is used to fix the aluminum plate 6 on the placement unit 3 .

[0019] This solution is provided with a liftable placement unit 3. When sintering large aluminum plates 6, the gap between the upper and lower large aluminum plates 6 is reduced / increased by moving them closer / farther away from each other within a limited gap, forming a breathing effect to help the airflow pass through the gap, and the airflow efficiency can be increased when the gap is increased. On the basis of low-gap sintering, it is beneficial to uniformly heat the gap between the aluminum plates 1, and both sintering quality and sintering efficiency are achieved.

[0020] The driving pair 16 includes a telescopic part and a motor arranged on the telescopic part. The rotating shaft of the motor enters the sintering chamber 11, and a docking groove is provided on the rotating shaft. A driving docking part 24 corresponding to the docking groove is provided at the upper end of the threaded shaft 23. This scheme sets up the driving pair 16 so that the rotating output shaft of the motor can penetrate into the high-temperature sintering chamber 11, and dock with the threaded shaft 23 through telescoping, so as to drive the threaded shaft 23 to rotate and drive the placement unit 3 to move back and forth. After the rotating shaft docks with the top of the threaded shaft 23, it can also fix the sintering rack 2 to prevent it from moving. When the sintering rack 11 is pushed into the innermost end of the track 14, the driving docking part 24 of the docking groove is automatically aligned.

[0021] The device body 1 also includes a hatch 12, a track 14 arranged in the sintering chamber 11, and a convection device 15 for forming an airflow in the sintering chamber 11. This solution is a prior art. The track 14 is used to facilitate the entry of the sintering rack 2, and the convection device 15 is used to form convection air in the sintering chamber 11.

[0022] Several first support plates 32 and second support plates 33 are provided in the frame 31. A pair of slide grooves 34 are opened on the second support plate 33, and the fixing component 5 is arranged in the slide groove 34. This solution arranges a pair of fixing components 5 on the second support plate 33 so that the fixing component 5 can position the aluminum plate 1 placed thereon to prevent it from gradually deviating during lifting. The first support plate 32 is used for auxiliary support.

[0023] The fixing assembly 5 includes a sliding member 51 slidingly connected along the slide groove 34, a pair of shaft portions 52 arranged on the sliding member 51, and an extension rod 53 arranged radially on the shaft portion 52, wherein a torsion spring 56 is provided on the shaft portion 52 to make the extension rods 53 close together, and an elastic member 58 is provided between the sliding member 51 and the slide groove 34 to make the sliding member 51 reset to the center of the slide groove 34. The sintering rack 2 is also provided with a driving component 4, which is used to first pull the shaft portion 52 to rotate and then pull the sliding member 51 to slide in the direction of overcoming the elastic member 58. This scheme specifically provides a fixing assembly 5, which uses two fixing assemblies 5 and a total of four extension rods 53 to support and fix the four inner corners of the folded edge of the aluminum plate 1. The extension rod 53 first opens and supports the inner wall of the folded edge of the aluminum plate 1, and then supports the four corners of the aluminum plate 1 as the sliding member 51 moves to both ends.

[0024] A guide wheel 54 is provided at the end of the extension rod 53, a guide rod 57 is provided between the sliding member 51 and the second support plate 33, and the elastic member 58 is sleeved on the guide rod 57. In this scheme, the extension rod 53 is first unfolded to contact the inner wall of the folded edge of the aluminum plate 1, and then slides toward the four corners. In order to reduce sliding friction, a guide wheel 54 is provided at the end of each extension rod 53.

[0025] The driving component 4 includes a sliding bar 42 slidably arranged at the bottom of the second support plate 33, and a rack 41 with double-sided teeth is provided at the end of the sliding bar 42, and a gear 55 meshing with the rack 41 is provided at the end of the shaft 52. The sliding bar 42 is used to pull the gear 55 to rotate so that the extension rod 53 opens to both sides, and drives the sliding member 51 to slide along the slide groove 34 after the extension rod 53 contacts the inner wall of the aluminum plate 6. In this scheme, the gear 41 is first driven to rotate by the sliding of the sliding bar 42. When the two ends of the extension rod 53 contact the inner wall of the folded edge of the aluminum plate 1, the gear 41 no longer rotates, and the rack 41 continues to slide toward the two ends of the second support plate 33 with the sliding bar 42, thereby driving the sliding member 51 to slide along the slide groove 34, and then the two extension rods 53 move toward the four corners of the folded edge of the aluminum plate 1. It should be noted that the elastic member 58 and torsion spring 56 in this scheme are made of high-temperature resistant materials and can operate stably at the sintering temperature.

[0026] The driving component 4 also includes a winding wheel 46 arranged on the guide sleeve 35. The guide shaft 22 is rotatably connected to the base 21 and is driven by a driving pair 16. The winding wheel 46 is slidably connected to the guide shaft 22. A pull rope 44 is provided at the end of the sliding bar 42 to connect with the winding wheel 46. The winding wheel 46 is used to be driven by the guide shaft 22 to rotate so as to drive the sliding bar 42 to slide through the pull rope 44. A steering wheel 45 for guiding the pull rope 44 is also provided on the frame 31. Since the driving component 4 operates in the sintering chamber 11 and its sintering temperature is between 180-200°C, the sliding bar 42 is driven to slide from the outside through the transmission structure, specifically by driving the guide shaft 22 to rotate, and then driving the winding wheel 46 to rotate through the guide shaft 22. The winding wheel 46 reels the pull rope 44 to drive the sliding bar 42 to rotate. In order to be resistant to high temperatures, the pull rope 44 can be made of a steel wire rope.

[0027] It should be noted that the guide shaft 22 is provided with a corresponding drive pair 16, and a torque sensor can be provided on the rotating shaft of the drive pair 16. When the drive pair 16 drives the guide shaft 22 to rotate, the extension rod 53 is first unfolded and then abuts against the four corners of the inner wall of the folded edge of the aluminum plate 1 along with the sliding member 51. When the sliding bar 42 cannot be pulled, the fixing function of the four corners of the extension rod is formed. Therefore, the above-mentioned torque sensor is provided, and it can be locked when the torque is reached. In this way, the fixing component can adapt to aluminum plates 1 of various sizes, and the internal support fixing structure will not deviate when the aluminum plate 1 moves up and down, and does not contact the front of the aluminum plate 1 and the outer side of the folded edge, and will not affect the porcelain surface.

[0028] The present invention also proposes an insulating porcelain aluminum plate, which is sintered by any of the above-mentioned preparation devices to obtain a porcelain aluminum plate, and an insulating layer is embedded on the back of the porcelain aluminum plate to obtain an insulating porcelain aluminum plate, wherein the insulating layer includes a polyurethane foam layer, an XPS layer, a rock wool layer, a glass wool layer and an aerogel layer.

[0029] Place the aluminum plate 1 with the porcelain surface facing upward on the first support plate 32 and the second support plate 33, then push it into the track 14. The driving pair 16 descends and docks with the guide shaft 22 and the threaded shaft 23. First, the guide shaft 22 rotates. The guide shaft 22 will not guide the sleeve 35, but drive the winding wheel 46 to rotate, and then drive the sliding bar 42 to move to both sides. Figure 2As shown, the winding wheel 46 on the upper left guide shaft 22 drives the two left sliding bars 42 to move outward, and the winding wheel 46 on the lower right guide shaft 22 drives the two right sliding bars 42 to move outward, thereby fixing the aluminum plate 1 internally. Then, the threaded shaft 23 is driven to rotate back and forth. The threaded sleeves 36 of adjacent layers have different thread directions. The threads on the threaded shaft 23 are divided into multiple sections, which correspond to the threaded sleeves 36 one by one. First, a number of spaced threaded sleeves 36 are driven to move up a small amount, and at the same time, the adjacent threaded sleeves 36 are moved down a small amount, forming gaps between adjacent placement units 3. The gaps appear alternately as the threaded shaft 23 rotates forward and reverse, thereby realizing reciprocating motion of the aluminum plate 1 for uniform heating. After sintering is completed, the driving pair 16 is retracted, and under the action of the torsion spring 56 and the elastic member 58, the fixing assembly 5 is reset, and the sintering rack 2 is pulled out.

[0030] The above-described embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. A device for preparing a heat-insulating porcelain-baked aluminum plate, characterized in that: include The device body (1) comprises a sintering chamber (11) and a control chamber (13), wherein a driving pair (16) is provided in the control chamber (13) and is telescopically inserted into the sintering chamber (11); A sintering rack (2) is arranged in a sintering chamber (11), comprising a base (21), guide shafts (22) arranged on one set of diagonal portions of the base (21), and threaded shafts (23) arranged on another set of diagonal portions; A placement unit (3) is provided on the sintering rack (2) for placing the aluminum plate (6), comprising a frame (31), wherein four corners of the frame (31) are respectively provided with threaded sleeves (36) corresponding to the threaded shaft (23) and guide sleeves (35) corresponding to the guide shaft (22), wherein the threaded sleeves (36) of adjacent placement units (3) have opposite threaded directions, and the threaded shaft (23) is driven by a driving pair (16) to rotate back and forth, thereby driving adjacent placement units (3) to move closer to / away from each other; A fixing assembly (5) is used to fix the aluminum plate (6) on the placement unit (3).

2. The device for preparing a thermal insulation porcelain aluminum plate according to claim 1, characterized in that: The driving pair (16) includes a telescopic member and a motor provided on the telescopic member. The rotating shaft of the motor enters the sintering chamber (11), and a docking groove is provided on the rotating shaft. The upper end of the threaded shaft (23) is provided with a driving docking member (24) corresponding to the docking groove.

3. The device for preparing a thermal insulation porcelain aluminum plate according to claim 1, characterized in that: The device body (1) further comprises a hatch (12), a track (14) arranged in the sintering chamber (11), and a convection device (15) for forming an airflow in the sintering chamber (11).

4. The device for preparing a thermal insulation porcelain aluminum plate according to claim 1, characterized in that: A plurality of first support plates (32) and a second support plate (33) are provided in the frame (31); a pair of slide grooves (34) are provided on the second support plate (33); and the fixing assembly (5) is provided in the slide grooves (34).

5. The device for preparing a thermal insulation porcelain aluminum plate according to claim 4, characterized in that: The fixing assembly (5) includes a sliding member (51) slidably connected along the slide groove (34), a pair of shafts (52) arranged on the sliding member (51), and an extension rod (53) is arranged on the shaft (52) along the radial direction, wherein a torsion spring (56) is provided on the shaft (52) for closing the extension rods (53) together, and an elastic member (58) is provided between the sliding member (51) and the slide groove (34) for resetting the sliding member (51) to the center of the slide groove (34). The sintering rack (2) is also provided with a driving member (4) for first pulling the shaft (52) to rotate and then pulling the sliding member (51) to slide in a direction to overcome the elastic member (58).

6. The device for preparing a thermal insulation porcelain aluminum plate according to claim 5, characterized in that: A guide wheel (54) is provided at the end of the extension rod (53), a guide rod (57) is provided between the sliding member (51) and the second support plate (33), and the elastic member (58) is sleeved on the guide rod (57).

7. The device for preparing a thermal insulation porcelain aluminum plate according to claim 5, characterized in that: The driving component (4) includes a sliding bar (42) slidably arranged at the bottom of the second support plate (33), the end of the sliding bar (42) is provided with a rack (41) with double-sided teeth, and the end of the shaft (52) is provided with a gear (55) meshing with the rack (41), and the sliding bar (42) is used to pull the gear (55) to rotate so that the extension rod (53) opens to both sides, and drives the sliding member (51) to slide along the slide groove (34) after the extension rod (53) contacts the inner wall of the aluminum plate (6).

8. The device for preparing a thermal insulation porcelain aluminum plate according to claim 7, characterized in that: The driving component (4) further includes a reel (46) arranged on the guide sleeve (35), the guide shaft (22) is rotatably connected to the base (21), and is provided with a driving pair (16) for driving, the reel (46) is slidably connected to the guide shaft (22), a pull rope (44) is provided at the end of the sliding bar (42) and connected to the reel (46), the reel (46) is used to be driven to rotate by the guide shaft (22) so as to drive the sliding bar (42) to slide through the pull rope (44), wherein the frame (31) is further provided with a steering wheel (45) for guiding the pull rope (44).

9. A thermal insulation porcelain aluminum plate, characterized in that: The ceramic aluminum plate is sintered by the preparation device described in any one of claims 1 to 8, and a thermal insulation layer is embedded in the back of the ceramic aluminum plate to obtain a thermal insulation ceramic aluminum plate.

10. The thermal insulation porcelain aluminum plate according to claim 9, characterized in that: The heat insulation layer comprises a polyurethane foam layer, an XPS layer, a rock wool layer, a glass wool layer and an aerogel layer.

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