A gypsum model drying device

Abstract

The utility model relates to drying device technical field, specifically disclose a kind of gypsum model drying device, include: pedestal, casing and machine top;Further include: connecting rod, connecting rod is fixedly connected with casing inner cavity upper portion, connecting rod lower portion is rotatably connected with drying pipe, and drying pipe is close to the side of casing inner cavity middle part and is provided with several spray heads.It is provided with motor, can utilize motor to drive gear two rotation, then through gear two to the meshing motion of adjacent gear one, drive gear one rotation, then through gear one to the meshing motion of adjacent worm wheel of worm, to be able to drive worm wheel rotation, then when worm wheel rotates, can drive connecting pipe two together rotation, to be able to drive drying pipe around casing inner cavity middle part position rotation when connecting pipe two rotates, then can place the even gas of conveying heating of gypsum model in casing inner cavity to it even drying.

Description

Technical Field

[0001] This utility model relates to the field of drying device technology, specifically a gypsum model drying device. Background Technology

[0002] Plaster models are porous materials made from natural plaster or industrial by-product plaster through processes such as crushing, calcining, slurry preparation, and molding. Their core component, calcium sulfate hemihydrate, recrystallizes into calcium sulfate dihydrate upon contact with water, forming a solid model with specific strength and porosity. They are widely used in fields such as architectural decoration, medical dentistry, art education, and industrial casting.

[0003] However, improper process control during the drying of plaster models can easily generate a large amount of dust. This dust leads to rough surfaces, reduced precision, and increased processing costs. Uneven heating of the plaster model is one of the causes of dust: when the drying temperature field distribution is unbalanced, local areas of the model will experience a sudden temperature rise, causing rapid surface hardening, forming a dense shell that hinders the migration of internal moisture. This causes trapped moisture to vaporize and generate high pressure, eventually leading to localized cracking and the formation of micron-sized dust. At the same time, the temperature gradient exacerbates the humidity difference inside the model, causing different shrinkage rates between the dry and wet areas and generating internal stress. When the stress exceeds the tensile strength of the plaster, microcracks extend along the grain boundaries and release particles. To address this, we propose a plaster model drying device. Utility Model Content

[0004] The purpose of this invention is to provide a plaster model drying device to solve the problem mentioned in the background art that plaster models are not heated evenly during the drying process, which easily generates dust.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a plaster model drying device, comprising: a base, a housing, and a top, wherein the upper end of the base is fixedly connected to the lower end of the housing, and the upper end of the housing is fixedly connected to the lower end of the top.

[0006] It also includes: a connecting rod, which is fixedly connected to the upper part of the inner cavity of the machine housing, and a drying tube is rotatably connected to the lower part of the connecting rod. Several nozzles are provided on the side of the drying tube near the middle of the inner cavity of the machine housing. A second connecting tube is fixedly connected to the lower part of the drying tube, and the inner cavity of the drying tube communicates with the inner cavity of the second connecting tube. A worm gear is fixedly connected to the lower part of the outer surface of the second connecting tube. A worm is meshed with one side of the worm gear. A support block is symmetrically rotatably connected to the worm. A first gear is fixedly connected to one side of the worm. A second gear is meshed with one side of the first gear. A motor is provided at the end of the second gear away from the worm gear, and the output end of the motor is fixedly connected to the end face of the second gear.

[0007] A conveying assembly is disposed in the inner cavity of the base and is used to filter and heat the gas;

[0008] The intake pipe has a fixed connection to a connecting pipe one at its output end. The outer surface of the connecting pipe one is rotatably connected to the inner cavity of the connecting pipe two. The upper part of the connecting pipe one has several diversion holes, which are located in the inner cavity of the connecting pipe two.

[0009] The upper part of the connecting pipe is fixedly connected to a tray, and the inner cavity of the tray is connected to the inner cavity of the connecting pipe. Several air vents are opened at the upper end of the tray.

[0010] The worm gear has a groove at the bottom, and a support platform is rotatably connected to the inner cavity of the groove. A support plate is fixedly connected to the lower end of the support platform, and the lower end of the support plate is fixedly connected to the upper end of the base. The lower end of the support block is fixedly connected to the upper end of the support plate.

[0011] The conveying assembly includes a filter screen plate fixedly connected to the inner cavity of the base. A connecting block is fixedly connected to the side of the filter screen plate near the middle of the inner cavity of the base. The connecting block is symmetrically provided with connecting grooves. A fan is provided in the inner cavity of each connecting groove. A housing is fixedly connected to the side of the fan away from the filter screen plate. A filter box is slidably connected to the inner cavity of the housing.

[0012] The inner cavity of the outer shell is fixedly connected to a heating shell on the side away from the filter box, and a heater is fixedly connected to the inner cavity of the heating shell. The side of the heating shell away from the filter box is fixedly connected to the air intake pipe, and the inner cavity of the heating shell is connected to the inner cavity of the air intake pipe.

[0013] The top of the machine is fixedly connected to an air outlet pipe, and the inlet end of the air outlet pipe extends through the inner cavity of the top of the machine and the outer surface of the top of the machine to the inner cavity of the casing. The inner cavity of the air outlet pipe is connected to the inner cavity of the casing, and a filter disc is installed in the inner cavity of the air outlet pipe.

[0014] One side of the casing has a mounting groove, and a transparent glass is fixedly connected inside the mounting groove.

[0015] This utility model has at least the following beneficial effects:

[0016] Equipped with a motor, the motor drives gear two to rotate. Gear two then meshes with gear one, causing gear one to rotate. Gear one then drives a worm gear to mesh with an adjacent worm wheel, causing the worm wheel to rotate. As the worm wheel rotates, it drives connecting pipe two to rotate as well. This rotation of connecting pipe two causes the drying pipe to rotate around the center of the machine housing. This allows for the uniform delivery of heated gas to the plaster model placed in the machine housing, ensuring even drying. This prevents localized areas of the model from hardening rapidly due to sudden temperature increases, forming a dense shell that hinders internal moisture migration. Furthermore, the trapped moisture vaporizes, generating high pressure and ultimately causing localized bursts that produce micron-sized dust. The conveying assembly allows for multi-stage filtration of the gas delivered to the machine housing, reducing the dust content in the gas and further reducing the dust content within the machine housing, thus improving the quality of the plaster model. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the tray of this utility model;

[0019] Figure 3 This is a schematic diagram of the drying tube of this utility model;

[0020] Figure 4 This is a schematic diagram of the worm gear of this utility model;

[0021] Figure 5 This is a schematic diagram of the nozzle of this utility model;

[0022] Figure 6 This is a schematic diagram of the flow divider hole of this utility model;

[0023] Figure 7 This is a schematic diagram of the conveying component of this utility model;

[0024] Figure 8 This is a schematic diagram of the filter box of this utility model.

[0025] In the diagram: 1. Base; 2. Conveying assembly; 21. Filter screen; 22. Connecting block; 23. Connecting groove; 24. Fan; 25. Filter box; 26. Heating shell; 27. Outer shell; 28. Heater; 3. Machine casing; 31. Mounting groove; 4. Top of machine; 41. Air outlet pipe; 42. Filter disc; 5. Support plate; 6. Tray; 61. Air outlet; 62. Connecting pipe one; 621. Diverting hole; 63. Air inlet pipe; 7. Connecting rod; 71. Drying pipe; 72. Nozzle; 73. Connecting pipe two; 74. Worm gear; 741. Slide groove; 742. Support platform; 75. Worm; 76. Support block; 77. Gear one; 78. Gear two; 79. Motor. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] Please see Figures 1 to 8 This utility model provides a technical solution: a gypsum model drying device, comprising: a base 1, a housing 3 and a top 4, wherein the upper end of the base 1 is fixedly connected to the lower end of the housing 3, and the upper end of the housing 3 is fixedly connected to the lower end of the top 4.

[0029] It also includes: a connecting rod 7, which is fixedly connected to the upper part of the inner cavity of the housing 3; a drying tube 71 is rotatably connected to the lower part of the connecting rod 7; several nozzles 72 are provided on the side of the drying tube 71 near the middle of the inner cavity of the housing 3; a second connecting tube 73 is fixedly connected to the lower part of the drying tube 71, and the inner cavity of the drying tube 71 communicates with the inner cavity of the second connecting tube 73; a worm gear 74 is fixedly connected to the lower part of the outer surface of the second connecting tube 73; a worm 75 is meshed with one side of the worm gear 74; a support block 76 is symmetrically rotatably connected to the worm 75; a gear 77 is fixedly connected to one side of the worm 75; a gear 78 is meshed with one side of the gear 77; a motor 79 is provided at the end of the gear 78 away from the worm gear 74, and the output end of the motor 79 is fixedly connected to the end face of the gear 78.

[0030] Conveying assembly 2 is disposed in the inner cavity of base 1 and is used for filtering and heating gas;

[0031] The intake pipe 63 has a connecting pipe 62 fixedly connected to its output end. The outer surface of the connecting pipe 62 is rotatably connected to the inner cavity of the connecting pipe 73. The upper part of the connecting pipe 62 has several diversion holes 621, which are located in the inner cavity of the connecting pipe 73.

[0032] By incorporating a motor 79, the motor 79 drives gear 2 78 to rotate. Gear 2 78 then meshes with adjacent gear 1 77, causing gear 1 77 to rotate. Gear 1 77 then drives worm 75 to mesh with adjacent worm wheel 74, causing worm wheel 74 to rotate. The rotation of worm wheel 74 causes connecting pipe 2 73 to rotate as well. This rotation of connecting pipe 2 73 causes drying pipe 71 to rotate around the center of the inner cavity of the casing 3, thus drying the tube placed in the casing... The plaster model inside the 3-cavity is uniformly supplied with heated gas to dry it evenly. This prevents localized areas of the model from hardening rapidly due to a sudden temperature rise, forming a dense shell that hinders the migration of internal moisture. This prevents trapped moisture from vaporizing and generating high pressure, which could eventually cause localized bursts and form micron-sized dust. The gas supplied to the inner cavity of the 3-cavity is filtered in multiple stages by the conveying component 2, which reduces the dust content in the gas and further reduces the dust content in the inner cavity of the 3-cavity, thus improving the quality of the plaster model.

[0033] A tray 6 is fixedly connected to the upper part of the connecting pipe 62, and the inner cavity of the tray 6 communicates with the inner cavity of the connecting pipe 62. Several air vents 61 are opened at the upper end of the tray 6. A sliding groove 741 is opened at the lower part of the worm gear 74. A support platform 742 is rotatably connected to the inner cavity of the sliding groove 741. A support plate 5 is fixedly connected to the lower end of the support platform 742. The lower end of the support plate 5 is fixedly connected to the upper end of the base 1. The lower end of the support block 76 is fixedly connected to the upper end of the support plate 5. The conveying assembly 2 includes a filter screen plate 21 fixedly connected to the inner cavity of the base 1. The filter screen plate 21 is close to the inner cavity of the base 1. A connecting block 22 is fixedly connected to one side of the part. The connecting block 22 has symmetrically opened connecting grooves 23. A fan 24 is installed in the inner cavity of each connecting groove 23. A housing 27 is fixedly connected to the side of the fan 24 away from the filter screen 21. A filter box 25 is slidably connected to the inner cavity of the housing 27. A heating shell 26 is fixedly connected to the side of the inner cavity of the housing 27 away from the filter box 25. A heater 28 is fixedly connected to the inner cavity of the heating shell 26. The side of the heating shell 26 away from the filter box 25 is fixedly connected to the air inlet pipe 63, and the inner cavity of the heating shell 26 communicates with the inner cavity of the air inlet pipe 63.

[0034] When drying the plaster model, the worker places the plaster model on the tray 6, and then controls the operation of the fan 24 and the heater 28 through the controller. The fan 24 can transport the outside air to the inner cavity of the heating shell 26, and then the heater 28 can heat the air. The heated air can be transported to the inner cavity of the connecting pipe 62 through the air inlet pipe 63. During the transportation process, the air can be filtered by the filter screen 21 and the filter box 25, which can intercept the dust in the air, thereby preventing the dust from being transported into the inner cavity of the machine shell 3 along with the air and affecting the quality of the plaster.

[0035] The gas supplied to the inner cavity of connecting pipe 62 flows towards tray 6. When the gas reaches the upper part of connecting pipe 62, several diversion holes 621 are provided, allowing some gas to be diverted into the inner cavity of connecting pipe 73. Then, through the cooperation of connecting pipe 73 and drying pipe 71, this portion of the gas is supplied to the inner cavity of drying pipe 71 and then delivered to the surface of the plaster model through nozzles 72 to dry the plaster model. Another portion of the gas is supplied to the inner cavity of tray 6 by connecting pipe 62 and then guided to the surface of the plaster model through several air vents 61. The cooperation of the air vents 61 and nozzles 72 allows for multi-directional drying of the plaster model. During the drying process, to improve drying efficiency... To ensure drying quality, the controller operates the motor 79, which drives the gear 2 78 to rotate. The gear 2 78 then meshes with the adjacent gear 1 77, causing it to rotate. The gear 1 77 then drives the worm 75 to mesh with the adjacent worm wheel 74, causing it to rotate. As the worm wheel 74 rotates, it also drives the connecting pipe 2 73 to rotate. This rotation of the connecting pipe 2 73 causes the drying pipe 71 to rotate around the center of the inner cavity of the casing 3. This ensures that the gypsum is fully exposed to the gas during the drying process, preventing some areas from becoming too hot or too cold, which would affect the drying process.

[0036] Example 2

[0037] An air outlet pipe 41 is fixedly connected to one side of the top of the machine 4, and the input end of the air outlet pipe 41 extends through the inner cavity of the top of the machine 4 and the outer surface of the top of the machine 4 to the inner cavity of the casing 3. The inner cavity of the air outlet pipe 41 communicates with the inner cavity of the casing 3. A filter plate 42 is provided in the inner cavity of the air outlet pipe 41. An installation groove 31 is opened on one side of the casing 3, and a transparent glass is fixedly connected in the inner cavity of the installation groove 31.

[0038] By providing an installation slot 31 and fixing a transparent glass plate inside the slot 31, workers can easily observe the plaster inside the machine casing 3 through the transparent glass, and then adjust the gas temperature during drying. By providing an exhaust pipe 41 and fixing a filter disc 42 inside the exhaust pipe 41, the gas discharged from the machine casing 3 can be filtered by the filter disc 42, which can prevent the gas inside the machine casing 3 from carrying dust, reduce the dust content in the outside, and reduce pollution to the surrounding environment.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gypsum model drying apparatus comprising: The base, housing, and top are provided, wherein the upper end of the base is fixedly connected to the lower end of the housing, and the upper end of the housing is fixedly connected to the lower end of the top. The feature is that it further includes: a connecting rod, which is fixedly connected to the upper part of the inner cavity of the housing; a drying tube is rotatably connected to the lower part of the connecting rod; a plurality of nozzles are provided on the side of the drying tube near the middle of the inner cavity of the housing; a second connecting tube is fixedly connected to the lower part of the drying tube, and the inner cavity of the drying tube communicates with the inner cavity of the second connecting tube; a worm gear is fixedly connected to the lower part of the outer surface of the second connecting tube; a worm is meshed with one side of the worm gear; a support block is symmetrically rotatably connected to the worm; a first gear is fixedly connected to one side of the worm; a second gear is meshed with one side of the first gear; a motor is provided at the end of the second gear away from the worm gear, and the output end of the motor is fixedly connected to the end face of the second gear. A conveying assembly, disposed within the inner cavity of the base, is used for filtering and heating gas; An air intake pipe is provided, and a connecting pipe is fixedly connected to the output end of the air intake pipe. The outer surface of the connecting pipe is rotatably connected to the inner cavity of the connecting pipe. Several diversion holes are provided on the upper part of the connecting pipe, and the several diversion holes are located in the inner cavity of the connecting pipe.

2. A plaster model drying device according to claim 1, characterized in that: A tray is fixedly connected to the upper part of the connecting pipe, and the inner cavity of the tray communicates with the inner cavity of the connecting pipe. Several air vents are opened at the upper end of the tray.

3. The plaster model drying device of claim 1, wherein: The worm gear has a groove at its lower part, and a support platform is rotatably connected to the inner cavity of the groove. A support plate is fixedly connected to the lower end of the support platform. The lower end of the support plate is fixedly connected to the upper end of the base, and the lower end of the support block is fixedly connected to the upper end of the support plate.

4. The plaster model drying device of claim 1, wherein: The conveying assembly includes a filter screen plate fixedly connected to the inner cavity of the base. A connecting block is fixedly connected to the side of the filter screen plate near the middle of the inner cavity of the base. The connecting block is symmetrically provided with connecting grooves. A fan is provided in the inner cavity of each connecting groove. A housing is fixedly connected to the side of the fan away from the filter screen plate. A filter box is slidably connected to the inner cavity of the housing.

5. A plaster model drying device according to claim 4, characterised in that: A heating shell is fixedly connected to the side of the outer shell cavity away from the filter box. A heater is fixedly connected to the inner cavity of the heating shell. The side of the heating shell away from the filter box is fixedly connected to the air inlet pipe, and the inner cavity of the heating shell communicates with the inner cavity of the air inlet pipe.

6. The plaster model drying device of claim 1, wherein: An air outlet pipe is fixedly connected to one side of the top of the machine, and the inlet end of the air outlet pipe extends through the inner cavity of the top of the machine and the outer surface of the top of the machine to the inner cavity of the casing. The inner cavity of the air outlet pipe communicates with the inner cavity of the casing, and a filter disc is provided in the inner cavity of the air outlet pipe.

7. The plaster model drying device of claim 1, wherein: A mounting groove is provided on one side of the housing, and a transparent glass is fixedly connected to the inner cavity of the mounting groove.

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