A multi-stage temperature-controlled drying device for preparing high-strength gypsum models

Abstract

The present invention discloses a multi-stage temperature-controlled drying device for preparing high-strength gypsum models, which relates to the technical field of gypsum model drying. It includes a housing, two door panels are hingedly connected to the front side of the housing, a base is fixedly connected to the bottom end of the housing, two ventilation hoods are connected to the top surface of the housing, a drying and storage mechanism is arranged inside the housing, diversion mechanisms are arranged on both sides of the drying and storage mechanism, a preheating mechanism is arranged at the rear of the drying and storage mechanism, and a water tank is arranged at the bottom end of the drying and storage mechanism. The drying and storage mechanism includes four vertical groove frames. The four vertical groove frames are divided into two groups in pairs, and a plurality of horizontal groove frames are fixedly connected to the side surfaces of each group of vertical groove frames. Electric heating tubes are arranged between the two vertical groove frames in the same group. In the present invention, the placement plate is cleverly driven to slide out of the housing along the horizontal groove frames by the flipping of the door panels, which is convenient for placing the gypsum models deeper inside the housing.

Description

Technical Field

[0001] The present invention relates to the technical field of gypsum model drying, and specifically provides a multi-stage temperature-controlled drying device for preparing high-strength gypsum models. Background Art

[0002] A multi-stage temperature-controlled drying device for preparing high-strength gypsum models is a device used in the drying process of gypsum products. By precisely controlling temperature changes, it helps the gypsum achieve the best drying effect at different stages, thereby maintaining its strength and shape. High-strength gypsum is usually applicable to fields such as construction, decoration, and industrial products. Such gypsum models require special temperature control during the drying process to avoid rapid cracking on the surface of the gypsum or incomplete evaporation of internal moisture. The multi-stage temperature-controlled drying device for preparing high-strength gypsum models ensures uniform evaporation of moisture during the drying process of the gypsum by gradually increasing temperature and humidity control, and avoids the influence of excessive temperature on the strength of the gypsum.

[0003] The patent with the publication number CN219264752U discloses a gypsum model drying device for green building design, which solves the problem that in the case of personnel operating the drying device to dry the gypsum model, affected by the position of the drying lamp and the distance of heat propagation, the gypsum model closer to the lamp will be dried faster. On the contrary, the gypsum model farther away from the lamp position will have its drying speed passively reduced, thus causing the problem of uneven drying. A gypsum model drying device for green building design includes a housing. The upper surface of the housing is fixedly connected with a top cover. One side of the top of the top cover is fixedly connected with a ventilation pipe. The inner cavity of the housing is provided with an outer frame, and mounting grooves are opened on the inner walls of the four sides of the outer frame. This patent enables the gypsum models inside the drying device to be effectively and evenly dried, avoiding the situation of cracks in the gypsum models close to the baking lamp. This patent has the problem that it is not easy to place and take out the gypsum models located deep inside the device. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a multi-stage temperature-controlled drying device for preparing high-strength gypsum models, which solves the problems raised in the above background art.

[0005] To achieve the above purposes, the present invention is realized through the following technical solutions: A multi-stage temperature-controlled drying device for preparing high-strength gypsum models includes a housing. Two door panels are hingedly connected to the front side of the housing. The bottom end of the housing is fixedly connected with a base. Two ventilation covers are connected to the top surface of the housing. A drying and storage mechanism is arranged inside the housing. Flow guiding mechanisms are arranged on both sides of the drying and storage mechanism. A preheating mechanism is arranged at the rear of the drying and storage mechanism. A water tank is arranged at the bottom end of the drying and storage mechanism.

[0006] The drying and storage mechanism includes four vertical groove frames. The four vertical groove frames are divided into two groups in pairs, and multiple horizontal groove frames are fixedly connected to the sides of each group of vertical groove frames. An electric heating tube is arranged between the two vertical groove frames in the same group. A placement plate is slidably connected to the inner side of each horizontal groove frame. An inner tube frame is fixedly connected below the placement plate. A ventilation hood is fixedly connected below the air box. A spring rod is slidably connected to the bottom surface of the air box. A spring fixing block is slidably connected to the side surface of the spring rod. A horizontal plate is fixedly connected to the rear end of the horizontal groove frame.

[0007] A hinge block is fixedly connected to the rear side surface of the door panel. A long groove rod is hingedly connected to the rear end of the hinge block. A short rod seat is slidably connected to the inner side of the long groove rod. An empty layer groove is formed on the front side surface of the placement plate located at the uppermost position. Vertical connecting rods are fixedly connected to both ends of the front side of the placement plate.

[0008] According to the above technical solution, the water tank is fixedly connected to the outer shell. The overall shape of the water tank is U-shaped. The base is fixedly connected to the vertical groove frame. The electric heating tube is fixedly connected to the horizontal groove frame. A elastic spring is arranged inside the spring rod, and both ends of the elastic spring are fixedly connected to the spring rod and the spring fixing block respectively. The short rod seat is fixedly connected to the placement plate located at the uppermost position. Place the plaster model to be dried above the placement plate, and then close the door panel. At this time, the door panel rotates around the outer shell, and the door panel pushes the long groove rod through the connected hinge block. Then, the long groove rod pushes the short rod seat under force, so that the placement plate at the top is pushed into the interior from the front side of the outer shell and the door panel is locked. At this time, built-in temperature sensors and humidity sensors are provided. By transmitting the temperature data and humidity data inside the outer shell to the control module, the control module controls the electric heating tube to work and adjusts the power of the electric heating tube to ensure that the internal environment of the outer shell is within the normal temperature range. The multi-level control of temperature is realized by controlling the power of the electric heating tube and the rotation speed of the fan by the control module, and the multi-level temperature control is optimized by cooperating with the diversion mechanism and the preheating mechanism. When the door panel is unlocked, the elastic spring connected to the spring fixing block releases elastic force to push the connected spring rod to pop out along the bottom of the air box to push the door panel open. By rotating the door panel around the connection point of the outer shell, the movement of the connected hinge block is driven when the door panel rotates. The connected long groove rod is pulled by the movement of the hinge block, and the long groove rod slides along the short rod seat. When the short rod seat moves to the end of the long groove rod, the long groove rod will pull the short rod seat, so that the short rod seat drives the connected placement plate and inner tube frame to move. As the door panel continues to rotate, the placement plate slides outwards along the inner side of the horizontal groove frame, so that the plaster model inside the outer shell on the placement plate is taken out from the inside.

[0009] According to the above technical solution, the flow guiding mechanism includes a fan, a wind gathering ring is arranged below the fan, a branch air duct is fixedly connected to one side of the air box away from the spring pressing rod, a plurality of square block grooves are formed in the bottom surface of the branch air duct, air duct baffles are fixedly connected to the front and rear sides of the branch air duct, a plurality of air duct guide plates are rotatably connected to the bottom surface of the branch air duct, two square groove blocking blocks are fixedly connected to the top side surface of each air duct guide plate, a deflection groove piece is fixedly connected to the top end of each air duct guide plate, a hinge column is slidably connected to the inner side of the deflection groove piece, a horizontal connecting rod is fixedly connected to the bottom end of the hinge column, and a shape memory alloy wire is fixedly connected to the rear end of the horizontal connecting rod.

[0010] According to the above technical solution, the fan is located inside the ventilation cover, the wind gathering ring is fixedly connected to the bottom surface of the air box, the square groove blocking blocks correspond to the positions of the square block grooves, the top ends of the air duct guide plates extend upward through the branch air duct, the horizontal connecting rod is slidably connected to the branch air duct, one end of the shape memory alloy wire away from the horizontal connecting rod is fixedly connected to the branch air duct, the shape memory alloy wire is made of nickel-titanium alloy material as a whole. When the electric heating tube enters the working state, the temperature inside the shell is relatively low at this time. As the temperature inside the shell rises, the shape memory alloy wire made of nickel-titanium alloy material is heated and shrinks. The horizontal connecting rod connected thereto is pulled by the shrinkage of the shape memory alloy wire to slide along the connection part of the branch air duct, so that the hinge column on the horizontal connecting rod pushes the deflection groove piece. At this time, the deflection groove piece drives the connected output connecting pipe to flip, and the air duct guide plate is flipped to stagger the square groove blocking blocks from the square block grooves formed in the bottom surface of the branch air duct. Through the rotation of the fan in the ventilation cover, the fan guides the downward-blowing wind into the branch air duct through the wind gathering ring in the air box, and the wind in the branch air duct enters between the air duct guide plates through the square block grooves, and the wind on the side of the air duct guide plate is heated by the electric heating tube and enters between the placement plates, so that the hot wind blows through the side of the gypsum model, and the hot wind passing between the placement plates is simultaneously blown downward by the fan and passes through the placement plates, thereby increasing the area of the outer surface of the gypsum model heated.

[0011] According to the above technical solution, the preheating mechanism includes six downward-moving horizontal frames, a vertical column rod is fixedly connected to the middle position of each downward-moving horizontal frame, insertion strips are fixedly connected to both ends of each downward-moving horizontal frame, a trapezoidal block is arranged below each insertion strip, an insertion connecting pipe is fixedly connected to the lower part of the trapezoidal block, and a connecting pipe is inserted and connected to one end of the insertion connecting pipe away from the inner pipe frame.

[0012] According to the above technical solution, an input connecting pipe is fixedly connected to one end of the connecting pipe away from the insertion connecting pipe, an output connecting pipe is fixedly connected to the left end of the rear side of the water tank, valve blocks are fixedly connected to the bottom ends of the output connecting pipe and the input connecting pipe, a vertical folding rod is fixedly connected to the rear end of the horizontal connecting rod, a push rod is fixedly connected to the bottom end of the vertical folding rod, a sliding blocking block is slidably connected to the inside of the valve block, and a through hole is formed in the upper surface of the sliding blocking block.

[0013] According to the above technical solution, the elastic rod and the downward moving cross frame are fitted together, the plug-in tube is fixedly connected to the inner tube frame, a reciprocating spring is arranged on the outer side of the vertical column rod, and the two ends of the reciprocating spring are respectively fixedly connected to the cross plate and the downward moving cross frame, the push rod is fixedly connected to the sliding block, the sliding block is connected to the inside of the input connecting pipe, the bottom end of the input connecting pipe is connected to a water pump, and the water pump is connected to the water tank. When the door panel is closed and squeezes the elastic rod, the elastic rod pushes the elastic spring to compress and press the downward moving cross frame and squeezes the reciprocating spring, so that the downward moving cross frame pushes the connected vertical column rod to move downward along the connection of the cross plate, and the movement of the downward moving cross frame pushes the connected plug-in strip to press the trapezoidal block on the plug-in tube, and the water in the water tank is pumped through the input connecting pipe by the water pump connected to the input connecting pipe. The pipe is transported to the connecting pipe, and then the connecting pipe enters the inner pipe rack through the plug-in pipe. As the temperature inside the outer shell rises, the alloy wire made of nickel-titanium alloy gradually shrinks as the temperature rises, driving the horizontal connecting rod to move. The movement of the horizontal connecting rod drives the connected vertical folding rod to move, so that the vertical folding rod drives the push rod to push the sliding block. At this time, the sliding block slides along the inside of the valve block, so that the through hole on the sliding block is staggered with the input connecting pipe connected to the valve block. At this time, the water in the inner pipe rack collects part of the heat, and the sliding block blocks the water in the inner pipe rack from flowing back into the water tank through the output connecting pipe, so that the water pump stops working, which can reduce the capacity loss caused by the continuous operation of the water pump. The alloy wire made of nickel-titanium alloy resets after cooling down, and the horizontal connecting rod drives the vertical folding rod to reset, so that the vertical folding rod pulls the sliding block to connect the through hole with the input connecting pipe.

[0014] The present invention provides a multi-stage temperature control drying device for preparing high-strength gypsum models. It has the following beneficial effects:

[0015] The present invention is provided with a vertical slot frame, a horizontal slot frame, an electric heating pipe, a placement plate, an inner tube frame, a bellows, a spring pressure rod, a spring solid block, an empty layer slot, a short rod seat, a long slot rod, a hinge block, and a vertical connecting rod. The elastic spring connected to the spring solid block releases the elastic force to push the connected spring pressure rod to pop out along the bottom of the bellows and push the door panel to open, so that the door panel is convenient to open and the heat in the shell is convenient to release the pressure. At the same time, the door panel is turned over to cleverly drive the placement plate to slide out of the shell along the horizontal slot frame, so that the gypsum model located deep inside the shell is convenient to be placed. At the same time, the sliding structure of the placement plate and the horizontal slot frame can quickly dissipate the heat around the gypsum model after the gypsum model is dried.

[0016] In the present invention, there are provided a fan, a sub-air duct, a wind-gathering ring, an air duct baffle, a square slot, a horizontal connecting rod, an air duct guide plate, a square slot stopper, a partial slot piece, a hinge column, and an alloy wire. The side of the air duct guide plate is heated by an electric heating tube and enters between the placement plates, allowing the hot air to blow past the side of the gypsum model. At the same time, the hot air passing between the placement plates is blown downward by the fan and passes through the placement plates, thereby increasing the heat-receiving area on the outer surface of the gypsum model, improving the evaporation efficiency of the moisture inside the gypsum, ensuring that the gypsum models placed on each placement plate are fully dried. At the same time, the alloy wire made of nickel-titanium alloy resets after cooling, pushing the horizontal connecting rod to flip the air duct guide plate. By flipping, the square slot stopper connected to the air duct guide plate blocks the square slot, retaining part of the heat between the air duct guide plate and the water tank, reducing air circulation for preheating in advance for subsequent drying;

[0017] In the present invention, there are provided a downward-moving horizontal frame, a vertical column rod, an insert, a connecting pipe, an input connecting pipe, an output connecting pipe, a vertical folding rod, a push rod, an inserted connecting pipe, a valve block, a sliding stopper, a through hole, and a trapezoidal block. When the trapezoidal block is pressed, it will push the inserted connecting pipe into the connecting pipe for automatic sealing. And after the door panel is unlocked and locked, the connection between the inserted connecting pipe and the connecting pipe can be automatically released by the reset of the elastic pressing rod for quick disassembly. At the same time, the water inside the inner pipe frame absorbs the surrounding heat and transfers the heat to the placement plate through contact, drying the bottom of the gypsum model through the placement plate, and the water filled inside the inner pipe frame absorbs the excess surrounding heat to reduce heat loss. In addition, the water inside the inner pipe frame flows back to the bottom of the water tank through the output connecting pipe under the action of gravity. Part of the collected water is used to preheat the inside of the housing by pumping the water with retained heat in the water tank into the inner pipe frame for subsequent drying, thereby reducing heat consumption, improving heat utilization efficiency, and reducing energy consumption. Description of the Drawings

[0018] Figure 1 is a front three-dimensional structure schematic diagram of the whole of the present invention;

[0019] Figure 2 is a rear three-dimensional structure schematic diagram of the whole of the present invention;

[0020] Figure 3 is a structure schematic diagram of the overall mechanism position distribution of the present invention;

[0021] Figure 4 is a structure schematic diagram of the overall drying and storage mechanism of the present invention;

[0022] Figure 5 is the whole of the present invention Figure 4 is an enlarged structure schematic diagram of A in the present invention;

[0023] Figure 6 is a structure schematic diagram of the overall diversion mechanism of the present invention;

[0024] Figure 7 is the whole of the present inventionFigure 6 Schematic diagram of the enlarged structure of B in

[0025] Figure 8 Schematic diagram of the structure of the overall preheating mechanism of the present invention;

[0026] Figure 9 of the whole of the present invention Figure 8 Schematic diagram of the enlarged structure of C in

[0027] Figure 10 of the whole of the present invention Figure 8 Schematic diagram of the enlarged structure of D in

[0028] Figure 11 of the whole of the present invention Figure 8 Schematic diagram of the enlarged structure of E in

[0029] In the figure: 1. Outer shell; 2. Door panel; 3. Base; 4. Ventilation cover; 5. Drying and storage mechanism; 51. Vertical groove frame; 52. Horizontal groove frame; 53. Electric heating tube; 54. Placing plate; 55. Inner tube frame; 56. Air box; 57. Elastic pressing rod; 58. Spring fixing block; 59. Empty layer groove; 510. Short rod seat; 511. Long groove rod; 512. Hinge block; 513. Vertical connecting rod; 6. Diversion mechanism; 61. Fan; 62. Sub-air duct; 63. Wind gathering ring; 64. Air duct baffle; 65. Square block groove; 66. Horizontal connecting rod; 67. Air duct guide plate; 68. Square groove block; 69. Offset groove piece; 610. Hinge column; 611. Alloy wire; 7. Preheating mechanism; 71. Lower moving horizontal frame; 72. Vertical column rod; 73. Insert bar; 74. Connecting pipe; 75. Input connecting pipe; 76. Output connecting pipe; 77. Vertical folding rod; 78. Push rod; 79. Insert connecting pipe; 710. Valve block; 711. Sliding block; 712. Through hole; 713. Trapezoidal block; 8. Water tank; 9. Horizontal plate. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0031] Please refer to Figure 1-11 , the embodiment of the present invention is: A multi-stage temperature-controlled high-strength gypsum model drying device, including an outer shell 1, two door panels 2 are hingedly connected to the front side of the outer shell 1, a base 3 is fixedly connected to the bottom end of the outer shell 1, two ventilation covers 4 are connected to the top surface of the outer shell 1, a drying and storage mechanism 5 is arranged inside the outer shell 1, diversion mechanisms 6 are arranged on both sides of the drying and storage mechanism 5, a preheating mechanism 7 is arranged at the rear of the drying and storage mechanism 5, and a water tank 8 is arranged at the bottom end of the drying and storage mechanism 5;

[0032] The drying and storage mechanism 5 includes four vertical groove frames 51. The four vertical groove frames 51 are grouped in pairs of two. And on the side of each group of vertical groove frames 51, a plurality of horizontal groove frames 52 are fixedly connected. Between the two vertical groove frames 51 in the same group, an electric heating pipe 53 is arranged. Inside each horizontal groove frame 52, a placement plate 54 is slidably connected. Below the placement plate 54, an inner pipe frame 55 is fixedly connected. Below the ventilation cover 4, an air box 56 is fixedly connected. On the bottom surface of the air box 56, a spring-loaded rod 57 is slidably connected. On the side of the spring-loaded rod 57, a spring fixing block 58 is slidably connected. At the rear end of the horizontal groove frame 52, a cross plate 9 is fixedly connected. On the rear side surface of the door panel 2, a hinge block 512 is fixedly connected. At the rear end of the hinge block 512, a long groove rod 511 is hingedly connected. Inside the long groove rod 511, a short rod seat 510 is slidably connected. On the front side surface of the placement plate 54 at the uppermost position, an empty layer groove 59 is opened. At both front ends of the placement plate 54, vertical connecting rods 513 are fixedly connected. The water tank 8 is fixedly connected to the outer shell 1. The overall shape of the water tank 8 is U-shaped. The base 3 is fixedly connected to the vertical groove frame 51. The electric heating pipe 53 is fixedly connected to the horizontal groove frame 52. Inside the spring-loaded rod 57, a elastic spring is arranged, and both ends of the elastic spring are fixedly connected to the spring-loaded rod 57 and the spring fixing block 58 respectively. The short rod seat 510 is fixedly connected to the placement plate 54 at the uppermost position. Let the door panel 2 push the long groove rod 511 through the connected hinge block 512, and then the long groove rod 511 is forced to push the short rod seat 510, so that the placement plate 54 at the top side is pushed into the interior from the front side of the outer shell 1 and the door panel 2 is locked. At this time, an internal temperature sensor and a humidity sensor are provided. By transmitting the temperature data and humidity data inside the outer shell 1 to the control module, the control module controls the electric heating pipe 53 to work and adjusts the power of the electric heating pipe 53 to ensure that the internal environment of the outer shell 1 is within the normal temperature range. When the door panel 2 is unlocked, at this time, the elastic spring connected to the spring fixing block 58 releases elastic force to push the connected spring-loaded rod 57 to pop out along the bottom of the air box 56 to push the door panel 2 open. By the door panel 2 flipping around the connection part of the outer shell 1, when the door panel 2 flips, it drives the connected hinge block 512 to move. By the movement of the hinge block 512, the connected long groove rod 511 is pulled, and the long groove rod 511 slides along the short rod seat 510. When the short rod seat 510 is displaced to the end of the long groove rod 511, the long groove rod 511 will pull the short rod seat 510, so that the short rod seat 510 drives the connected placement plate 54 and inner pipe frame 55 to move. As the door panel 2 continues to flip, the placement plate 54 slides outwards along the inside of the horizontal groove frame 52, so that the plaster model inside the outer shell 1 on the placement plate 54 is taken out from the inside. By the door panel 2 flipping to cleverly drive the placement plate 54 to slide out of the outer shell 1 along the horizontal groove frame 52, it is convenient for the placement of the plaster model deeper inside the outer shell 1. At the same time, the structure of the placement plate 54 sliding with the horizontal groove frame 52 can dissipate the heat around the plaster model faster after the plaster model is dried.

[0033] The air guiding mechanism 6 includes a fan 61. Below the fan 61, there is a wind gathering ring 63. On the side of the air box 56 away from the spring pressing rod 57, there is a sub-air duct 62 fixedly connected. On the bottom surface of the sub-air duct 62, there are a plurality of square grooves 65. On the front and rear sides of the sub-air duct 62, there are air duct baffles 64 fixedly connected. On the bottom surface of the sub-air duct 62, there are a plurality of air duct guide plates 67 rotatably connected. On the side surface of the top end of the air duct guide plate 67, there are two square groove stoppers 68 fixedly connected. On the top end of each air duct guide plate 67, there is a bias groove piece 69 fixedly connected. Inside the bias groove piece 69, there is a hinge column 610 slidably connected. At the bottom end of the hinge column 610, there is a cross link 66 fixedly connected. At the rear end of the cross link 66, there is a shape memory alloy wire 611 fixedly connected. The fan 61 is located inside the ventilation cover 4. The wind gathering ring 63 is fixedly connected to the bottom surface of the air box 56. The position of the square groove stopper 68 corresponds to the position of the square groove 65. The top end of the air duct guide plate 67 extends upward through the sub-air duct 62. The cross link 66 is slidably connected to the sub-air duct 62. One end of the shape memory alloy wire 611 away from the cross link 66 is fixedly connected to the sub-air duct 62. The shape memory alloy wire 611 is made of nickel-titanium alloy material. As the temperature inside the housing 1 rises, the nickel-titanium alloy material of the shape memory alloy wire 611 heats up and shrinks. By the shrinkage of the shape memory alloy wire 611, the connected cross link 66 is pulled to slide along the connection part of the sub-air duct 62, so that the hinge column 610 on the cross link 66 pushes the bias groove piece 69. At this time, the bias groove piece 69 drives the connected output connecting pipe 76 to flip. By the flipping of the air duct guide plate 67, the square groove stopper 68 is staggered from the square groove 65 opened on the bottom surface of the sub-air duct 62. By the rotation of the fan 61 inside the ventilation cover 4, the air blown downward by the fan 61 is guided into the sub-air duct 62 through the wind gathering ring 63 inside the air box 56. The air in the sub-air duct 62 enters between the air duct guide plates 67 through the square groove 65, and is heated by the electric heating tube 53 on the side of the air duct guide plate 67 and enters between the placement plates 54, so that the hot air blows over from the side of the gypsum model. The hot air passing between the placement plates 54 is simultaneously blown downward by the fan 61 and passes through the placement plates 54, thereby increasing the area of the outer surface of the gypsum model heated and improving the evaporation efficiency of the moisture in the gypsum, ensuring that the gypsum models placed on each placement plate 54 are fully dried. When the drying is completed, the electric heating tube 53 and the fan 61 stop working. After the temperature inside the housing 1 is reduced by natural cooling, the nickel-titanium alloy material of the shape memory alloy wire 611 resets after cooling, pushing the cross link 66 to flip the air duct guide plate 67. By the flipping, the square groove stopper 68 connected to the air duct guide plate 67 blocks the square groove 65 to retain part of the heat between the air duct guide plate 67 and the water tank 8, reducing air circulation for preheating in advance for subsequent drying.

[0034] The preheating mechanism 7 includes six downwardly movable horizontal frames 71, the middle position of which is fixedly connected with a vertical column 72, both ends of each downwardly movable horizontal frame 71 are fixedly connected with an insertion strip 73, a trapezoidal block 713 is arranged below each insertion strip 73, a plug-in tube 79 is fixedly connected below the trapezoidal block 713, the end of the plug-in tube 79 away from the inner tube frame 55 is plugged with a connecting tube 74, the end of the connecting tube 74 away from the plug-in tube 79 is fixedly connected with an input connecting tube 75, the left end of the rear side of the water tank 8 is fixedly connected with an output connecting tube 76, the bottom ends of the output connecting tube 76 and the input connecting tube 75 are fixedly connected with a valve block 710, the rear end of the horizontal connecting rod 66 is fixedly connected with a vertical folding rod 77, the bottom end of the vertical folding rod 77 is fixedly connected with a push rod 78, the internal sliding of the valve block 710 The upper surface of the sliding block 711 is provided with a through hole 712, the spring rod 57 and the downward moving cross frame 71 are fitted together, the plug-in tube 79 is fixedly connected to the inner tube frame 55, a reciprocating spring is arranged on the outer side of the vertical column rod 72, and the two ends of the reciprocating spring are respectively fixedly connected to the cross plate 9 and the downward moving cross frame 71, the push rod 78 is fixedly connected to the sliding block 711, the sliding block 711 is connected to the inside of the input connecting pipe 75, the bottom end of the input connecting pipe 75 is connected to a water pump, and the water pump is connected to the water tank 8, the spring rod 57 pushes the elastic spring to compress and press the downward moving cross frame 71 and squeeze the reciprocating spring, so that the downward moving cross frame 71 pushes the connected vertical column rod 72 to move downward along the connection of the cross plate 9, and the movement of the downward moving cross frame 71 pushes the connected plug-in strip 7 3. The trapezoidal block 713 on the plug-in tube 79 is pressed, so that the trapezoidal block 713 is pressed to push the plug-in tube 79 into the connecting tube 74 to automatically seal it. After the door panel 2 is unlocked and locked, the connection between the plug-in tube 79 and the connecting tube 74 is automatically released by resetting the elastic rod 57 to achieve rapid separation. The water in the water tank 8 is transported to the connecting tube 74 through the input connecting tube 75 by the water pump connected to the input connecting tube 75, and then the connecting tube 74 enters the inner tube rack 55 through the plug-in tube 79. The water in the inner tube rack 55 absorbs the surrounding heat and transfers the heat to the placement plate 54 through contact. The bottom of the gypsum model is dried by the placement plate 54, and the water filled in the inner tube rack 55 absorbs the surrounding excess heat to reduce heat loss. As the outer As the temperature inside the shell 1 rises, the alloy wire 611 made of nickel-titanium alloy gradually shrinks as the temperature rises, driving the horizontal connecting rod 66 to move. The horizontal connecting rod 66 moves the connected vertical folding rod 77, so that the vertical folding rod 77 drives the push rod 78 to push the sliding block 711. At this time, the sliding block 711 slides along the inside of the valve block 710, so that the through hole 712 on the sliding block 711 is staggered with the input connecting pipe 75 connected to the valve block 710. At this time, the water in the inner pipe rack 55 collects part of the heat, and the sliding block 711 blocks the water in the inner pipe rack 55 from flowing back into the water tank 8 through the output connecting pipe 76, so that the water pump stops working, which can reduce the capacity loss caused by the continuous operation of the water pump. The alloy wire 611 made of nickel-titanium alloy resets after cooling down, and the horizontal connecting rod 66 drives the vertical folding rod 77 to reset.The vertical folding rod 77 pulls the sliding block 711 to connect the through hole 712 with the input connecting pipe 75, so that the water in the inner pipe frame 55 flows back to the bottom part of the water tank 8 under the action of gravity through the output connecting pipe 76. The collected water is used for subsequent drying. The water with retained heat in the water tank 8 is pumped into the inner pipe frame 55 to preheat the interior of the outer shell 1, thereby reducing heat consumption, improving heat utilization efficiency, and reducing energy consumption.

[0035] Working principle: Place the plaster model to be dried above the placing plate 54, and then close the door panel 2. At this time, the door panel 2 rotates around the outer shell 1, and the door panel 2 pushes the long groove rod 511 through the connected hinge block 512. Then, the long groove rod 511 is forced to push the short rod seat 510, so that the placing plate 54 on the top side is pushed into the interior from the front side of the outer shell 1 and locks the door panel 2. At this time, built-in temperature sensors and humidity sensors transmit the temperature data and humidity data inside the outer shell 1 to the control module. The control module controls the electric heating tube 53 to work and adjusts the power of the electric heating tube 53 to ensure that the internal environment of the outer shell 1 is within the normal temperature range. When the door panel 2 is unlocked, the elastic spring connected to the spring block 58 releases its elastic force to push the connected spring pressing rod 57 to pop out along the bottom of the air box 56 to push the door panel 2 open. When the door panel 2 rotates around the connection of the outer shell 1, the movement of the door panel 2 drives the connected hinge block 512 to move. The movement of the hinge block 512 pulls the connected long groove rod 511, and the long groove rod 511 slides along the short rod seat 510. When the short rod seat 510 moves to the end of the long groove rod 511, the long groove rod 511 will pull the short rod seat 510, so that the short rod seat 510 drives the connected placing plate 54 and inner pipe frame 55 to move. As the door panel 2 continues to rotate, the placing plate 54 slides outwards along the inner side of the transverse groove frame 52, so that the plaster model located inside the outer shell 1 on the placing plate 54 is taken out from the inside. The rotation of the door panel 2 cleverly drives the placing plate 54 to slide out of the outer shell 1 along the transverse groove frame 52, which is convenient for placing the plaster model deeper inside the outer shell 1. At the same time, the sliding structure of the placing plate 54 and the transverse groove frame 52 can dissipate the heat around the plaster model faster after the plaster model is dried.

[0036] When the electric heating tube 53 enters the working state, the temperature inside the outer shell 1 is relatively low at this time. As the temperature inside the outer shell 1 rises, the alloy wire 611 made of nickel-titanium alloy is heated and shrinks. The horizontal connecting rod 66 connected to it is pulled by the shrinkage of the alloy wire 611 and slides along the connection with the sub-air duct 62, so that the hinge column 610 on the horizontal connecting rod 66 pushes the eccentric groove piece 69. At this time, the eccentric groove piece 69 drives the connected output connecting pipe 76 to turn over. Through the turning of the air duct guide plate 67, the square groove block 68 is staggered from the square block groove 65 opened on the bottom surface of the sub-air duct 62. Through the rotation of the fan 61 in the ventilation cover 4, the fan 61 guides the air blown downward into the sub-air duct 62 through the air gathering ring 63 in the air box 56, and makes the air in the sub-air duct 62 enter between the air duct guide plates 67 through the square block groove 65, and is heated by the electric heating tube 53 through the side of the air duct guide plate 67 and enters between the placement plates 54, so that the hot air blows over the side of the gypsum model, and the hot air passing between the placement plates 54 is simultaneously blown downward by the fan 61 and passes through the placement plates 54, thereby increasing the heat receiving area of the outer surface of the gypsum model, improving the evaporation efficiency of the moisture in the gypsum, and ensuring that the gypsum models placed on each placement plate 54 are fully dried. When the drying is completed, the electric heating tube 53 and the fan 61 stop working. After the temperature inside the outer shell 1 is reduced by natural cooling, the alloy wire 611 made of nickel-titanium alloy resets after cooling, pushes the horizontal connecting rod 66 to turn over the air duct guide plate 67, and through the turning, the square groove block 68 connected to the air duct guide plate 67 blocks the square block groove 65 to retain part of the heat between the air duct guide plate 67 and the water tank 8, reducing air circulation for preheating in advance for subsequent drying;

[0037] When the door panel 2 is closed and the spring pressure rod 57 is squeezed, the spring pressure rod 57 pushes the elastic spring to compress and press the downward moving cross frame 71 and squeeze the reciprocating spring, so that the downward moving cross frame 71 pushes the connected vertical column rod 72 to move downward along the connection of the horizontal plate 9, and the movement of the downward moving cross frame 71 pushes the connected plug strip 73 to press the trapezoidal block 713 on the plug-in tube 79, so that the trapezoidal block 713 is pressed to push the plug-in tube 79 to be inserted into the connecting tube 74 for automatic sealing, and after the door panel 2 is unlocked and locked, the spring pressure rod 57 is reset to automatically release the plug-in tube 79 and the connecting tube The connection of 74 is realized by rapid disassembly. The water in the water tank 8 is transported to the connecting pipe 74 through the input connecting pipe 75 by the water pump connected to the input connecting pipe 75. Then, the water in the water tank 8 is transported to the connecting pipe 74 through the connecting pipe 74 through the plug-in pipe 79. The water in the inner tube rack 55 absorbs the surrounding heat and transfers the heat to the placement plate 54 through contact. The bottom of the plaster model is dried by the placement plate 54, and the water filled in the inner tube rack 55 absorbs the surrounding excess heat to reduce heat loss. As the temperature inside the shell 1 rises, the alloy wire 6 made of nickel-titanium alloy As the temperature rises, the horizontal connecting rod 66 gradually contracts and moves, and the horizontal connecting rod 66 moves and drives the connected vertical folding rod 77 to move, so that the vertical folding rod 77 drives the push rod 78 to push the sliding block 711. At this time, the sliding block 711 slides along the inside of the valve block 710, so that the through hole 712 on the sliding block 711 is staggered with the input connecting pipe 75 connected to the valve block 710. At this time, the water in the inner pipe rack 55 collects part of the heat, and the sliding block 711 blocks the water in the inner pipe rack 55 from flowing back to the water tank 8 through the output connecting pipe 76, so that the water pump stops working, which can reduce In order to reduce the capacity loss caused by the continuous operation of the water pump, the alloy wire 611 made of nickel-titanium alloy is reset after cooling, and the horizontal connecting rod 66 drives the vertical folding rod 77 to reset, so that the vertical folding rod 77 pulls the sliding block 711 to connect the through hole 712 with the input connecting pipe 75, so that the water in the inner pipe rack 55 flows back to the bottom part of the water tank 8 through the output connecting pipe 76 under the action of gravity. The collected water is used for subsequent drying. The water pump passes the water with retained heat in the water tank 8 into the inner pipe rack 55 to preheat the inside of the outer shell 1, thereby reducing heat consumption, improving heat utilization, and reducing energy consumption.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-stage temperature control drying device for preparing high-strength gypsum models, comprising a housing (1), characterized in that: The front side of the shell (1) is hingedly connected to two door panels (2); the bottom end of the shell (1) is fixedly connected to a base (3); the top surface of the shell (1) is connected to two ventilation covers (4); a drying and storage mechanism (5) is provided inside the shell (1); both sides of the drying and storage mechanism (5) are provided with flow guide mechanisms (6); the rear side of the drying and storage mechanism (5) is provided with a preheating mechanism (7); and the bottom end of the drying and storage mechanism (5) is provided with a water tank (8); The drying and storing mechanism (5) comprises four vertical slot frames (51), the four vertical slot frames (51) are arranged in groups of two, and the side surfaces of each group of vertical slot frames (51) are fixedly connected to a plurality of horizontal slot frames (52), an electric heating pipe (53) is arranged between two vertical slot frames (51) in the same group, a placement plate (54) is slidably connected to the inner side of each horizontal slot frame (52), an inner tube frame (55) is fixedly connected below the placement plate (54), a bellows (56) is fixedly connected below the ventilation hood (4), a spring rod (57) is slidably connected to the bottom surface of the bellows (56), a spring block (58) is slidably connected to the side surfaces of the spring rod (57), and a horizontal plate (9) is fixedly connected to the rear end of the horizontal slot frame (52); The air guide mechanism (6) comprises a fan (61), a wind gathering ring (63) is arranged below the fan (61), a side of the wind box (56) away from the spring pressure rod (57) is fixedly connected to a branch air duct (62), a plurality of square grooves (65) are provided on the bottom surface of the branch air duct (62), a front and rear side of the branch air duct (62) are fixedly connected to air duct baffles (64), a plurality of air duct guide plates (67) are rotatably connected to the bottom surface of the branch air duct (62), two square groove baffles (68) are fixedly connected to the top side of the air duct guide plate (67), a top end of each of the air duct guide plates (67) is fixedly connected to a deflecting groove piece (69), an inner side of the deflecting groove piece (69) is slidably connected to a hinge column (610), a bottom end of the hinge column (610) is fixedly connected to a transverse connecting rod (66), and a rear end of the transverse connecting rod (66) is fixedly connected to an alloy wire (611); The fan (61) is located inside the ventilation cover (4), the air gathering ring (63) is fixedly connected to the bottom surface of the bellows (56), the square groove block (68) corresponds to the position of the square groove (65), the top of the air duct guide plate (67) extends upward to penetrate into the air duct (62), the horizontal connecting rod (66) is slidably connected to the air duct (62), and one end of the alloy wire (611) away from the horizontal connecting rod (66) is fixedly connected to the air duct (62), and the alloy wire (611) is made of nickel-titanium alloy as a whole.

2. A multi-stage temperature control drying device for preparing high-strength gypsum models according to claim 1, characterized in that: The rear side surface of the door panel (2) is fixedly connected to a hinge block (512), the rear end of the hinge block (512) is hingedly connected to a long slot rod (511), the inner side of the long slot rod (511) is slidably connected to a short rod seat (510), an empty layer groove (59) is provided on the front side surface of the placement plate (54) at the top, and both ends of the front side of the placement plate (54) are fixedly connected to vertical connecting rods (513).

3. A multi-stage temperature control drying device for preparing high-strength gypsum models according to claim 2, characterized in that: The water tank (8) is fixedly connected to the outer shell (1); the overall shape of the water tank (8) is U-shaped; the base (3) is fixedly connected to the vertical slot frame (51); the electric heating tube (53) is fixedly connected to the horizontal slot frame (52); an elastic spring is provided on the inner side of the elastic rod (57); and the two ends of the elastic spring are respectively fixedly connected to the elastic rod (57) and the spring fixing block (58); and the short rod seat (510) is fixedly connected to the placement plate (54) located at the top.

4. The multi-stage temperature control drying device for preparing high-strength gypsum models according to claim 3, characterized in that: The preheating mechanism (7) comprises six downwardly movable horizontal frames (71), the middle positions of the downwardly movable horizontal frames (71) are fixedly connected to vertical pillars (72), both ends of each downwardly movable horizontal frame (71) are fixedly connected to insertion strips (73), a trapezoidal block (713) is arranged below each insertion strip (73), a plug-in tube (79) is fixedly connected below the trapezoidal block (713), and one end of the plug-in tube (79) away from the inner tube frame (55) is plug-connected to a connecting tube (74).

5. The multi-stage temperature control drying device for preparing high-strength gypsum models according to claim 4, characterized in that: An input connecting pipe (75) is fixedly connected to one end of the connecting pipe (74) away from the plug-in pipe (79); an output connecting pipe (76) is fixedly connected to the left end of the rear side of the water tank (8); the bottom ends of the output connecting pipe (76) and the input connecting pipe (75) are fixedly connected to a valve block (710); a vertical folding rod (77) is fixedly connected to the rear end of the horizontal connecting rod (66); a push rod (78) is fixedly connected to the bottom end of the vertical folding rod (77); a sliding stopper (711) is slidably connected to the interior of the valve block (710); a through hole (712) is provided on the upper surface of the sliding stopper (711).

6. The multi-stage temperature control drying device for preparing high-strength gypsum models according to claim 5, characterized in that: The elastic rod (57) and the downwardly movable horizontal frame (71) are fitted with each other. The elastic rod (57) pushes the elastic spring to compress and apply pressure to the downwardly movable horizontal frame (71) and squeeze the reciprocating spring, so that the downwardly movable horizontal frame (71) pushes the connected vertical column rod (72) to move downward along the connection point of the horizontal plate (9). The plug-in tube (79) is fixedly connected to the inner tube frame (55). A reciprocating spring is arranged on the outer side of the vertical column rod (72), and the two ends of the reciprocating spring are respectively fixedly connected to the horizontal plate (9) and the downwardly movable horizontal frame (71). The push rod (78) is fixedly connected to the sliding block (711), and the sliding block (711) is connected to the inside of the input connecting pipe (75). The bottom end of the input connecting pipe (75) is connected to a water pump, and the water pump is connected to the water tank (8).

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