A colored sand preparation device with heat storage and insulation effect

Abstract

The utility model discloses a colorful sand preparation device with heat accumulation and heat preservation effect, including box, openwork board, stirring subassembly and paving subassembly, the box is the hollow cuboid structure of horizontal arrangement, and still is horizontally equipped with the openwork board of being matched with it in its inside intermediate upper position, still be equipped with stirring subassembly in the inside of box relative to the below of openwork board, and through stirring subassembly to fine sand is stirred, still be equipped with paving subassembly in the inside of box relative to the above of openwork board, and through paving subassembly will dye even pave on openwork board, again even add fine sand in openwork board, and with fine sand are stirred and mix. The utility model can in the process that the stirring blade carries out stirring and mixes fine sand and dye, continuously and unceasingly heat to it to avoid the generation of the phenomenon of uneven heating.

Description

Technical Field

[0001] This utility model relates to the field of colored sand preparation technology, specifically to a colored sand preparation device with heat storage and heat preservation effect. Background Technology

[0002] Colored sand boasts advantages such as vibrant colors, strong weather resistance, wear resistance, acid and alkali resistance, and slip resistance, making it widely used in decoration, handicrafts, and other industries. Existing colored sand preparation equipment uses a combination of fans, heating pipes, and electric heating boxes to directly heat the dye and fine sand during mixing. However, due to the poor fluidity of colored sand, uneven heating is prone to occur. Furthermore, the current method of adding dye all at once, while achieving mixing with the fine sand during stirring, still easily leads to viscous clumping, thus affecting the quality of the colored sand. Therefore, these problems urgently need to be addressed. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a colored sand preparation device with heat storage and heat preservation effect. By using a heating box, a fan, a duct, channel I, channel II, channel III and a blower in combination, the device can continuously heat the fine sand and dye during the stirring and mixing process of the stirring blades, thereby avoiding uneven heating and improving the stirring and mixing effect.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a colored sand preparation device with heat storage and insulation effect, the innovation of which is: it includes a box body, a perforated plate, a stirring component, and a spreading component; the box body is a horizontally arranged hollow cuboid structure, and a matching perforated plate is horizontally arranged at the upper middle position inside the box body; a stirring component is arranged inside the box body below the perforated plate, and the fine sand is stirred by the stirring component; a spreading component is arranged inside the box body above the perforated plate, and the dye is evenly spread on the perforated plate by the spreading component, and then evenly added to the fine sand through the perforated plate, and stirred and mixed with the fine sand.

[0005] Preferably, the aperture of the perforated plate is slightly larger than the particle size of the dye, and with the cooperation of the flat-laying component, the dye is evenly added downward through the perforated plate.

[0006] Preferably, the tiling assembly includes a first electric push rod, a reinforcing rod, a second electric push rod, a brush, a connecting rod, and a slider; two first electric push rods are horizontally screwed at intervals on the right side of the housing relative to the top of the perforated plate, and the extension and retraction of the two first electric push rods are synchronized. A reinforcing rod is inclined between the tail of each first electric push rod and the right side of the housing, and the reinforcing rod strengthens and fixes the corresponding first electric push rod; the pushing end of each first electric push rod extends horizontally and vertically into the interior of the housing, and is fixedly connected to the tail of the vertically arranged corresponding second electric push rod, thereby driving the corresponding second electric push rod to perform water tiling in the area inside the housing relative to the top of the perforated plate. The device performs a horizontal reciprocating motion. Each second electric push rod has a vertically connected link at its tail end, and the upper end of each link is horizontally slidably connected to the inner top surface of the housing via a slider, thus ensuring the stability of the horizontal movement of the second electric push rod. The extension and retraction of the two second electric push rods are synchronized, and their pushing ends are both vertically downwards. A brush matching the longitudinal width of the perforated plate is also provided at the pushing end of each of the two second electric push rods. The flattening end of the brush faces downwards towards the perforated plate and contacts the upper surface of the perforated plate. Through the cooperation of the first and second electric push rods, the brush moves horizontally and vertically, spreading the dye evenly on the perforated plate, and then uniformly adding it downwards through the perforated plate.

[0007] Preferably, it also includes a feeding pipe and a solenoid valve II; a feeding pipe is vertically provided in the middle of the upper surface of the box, and a solenoid valve II is connected to it, and the opening and closing of the feeding pipe is controlled by the solenoid valve II; the lower end of the feeding pipe extends vertically downward out of the inner top surface of the box, and does not interfere with the laying action of the laying component, so as to add dye to the perforated plate through the feeding pipe.

[0008] Preferably, it also includes a feed pipe and a solenoid valve I; a feed pipe is also inclinedly embedded and connected on the left side of the box body relative to the upper part of the stirring assembly. The feed pipe is spaced below the perforated plate, and its lower end extends downward inclinedly into the interior of the box body, without interfering with the stirring action of the stirring assembly, thereby adding fine sand into the box body through the feed pipe; a solenoid valve I is also connected to the upper part of the feed pipe, and the solenoid valve I is used to control the opening and closing of the feed pipe.

[0009] Preferably, it also includes a feeding pipe and a solenoid valve III; a feeding pipe is vertically provided at the middle position of the lower surface of the box, and a solenoid valve III is connected to it, and the opening and closing of the feeding pipe is controlled by the solenoid valve III; the upper end of the feeding pipe extends vertically upward to the inner bottom surface of the box and communicates with the interior of the box, and does not interfere with the operation of the stirring assembly, so as to collect the mixed colored sand through the feeding pipe.

[0010] Preferably, the stirring assembly includes a servo motor, a stirring shaft, a connecting rod, and stirring blades; a servo motor is also horizontally positioned slightly below the center of the left side of the housing, spaced below the feed pipe, with its output end extending horizontally and vertically into the interior of the housing, and coaxially connected to the left end of the horizontally positioned stirring shaft via a coupling. The right end of the stirring shaft is rotatably connected to the right inner sidewall of the housing around its own axis, and under the drive of the servo motor, the stirring shaft rotates around its own axis; inside the housing, relative to the stirring... Arc-shaped stirring blades are provided on both the upper and lower sides of the shaft, and the lateral length of each stirring blade matches the length of the stirring shaft. The two stirring blades are spaced apart below the hollow plate and are coaxially spaced with the stirring shaft. Several connecting rods are also arranged laterally between the inner arc surface of each stirring blade and the outer circumferential surface of the stirring shaft, and are staggered left and right relative to the adjacent connecting rods on the upper and lower sides of the stirring shaft. The two stirring blades are fixed on the stirring shaft by the connecting rods, and the stirring blades rotate with the stirring shaft to stir and mix the fine sand and dye.

[0011] Preferably, it also includes an annular track; at the middle of the left and right end faces of each of the stirring blades, a groove matching the annular track is respectively embedded coaxially and vertically, each groove being arc-shaped, and its two ends extending vertically outward from the end face corresponding to the stirring blade; annular tracks are also fixedly attached to the left inner side wall and the right inner side wall of the housing, each annular track being coaxially spaced from the stirring shaft, and its setting position matching the opening position of the corresponding groove, thereby ensuring the stability of the stirring blade rotation through the cooperation of the annular track and the groove.

[0012] Preferably, a channel I is coaxially embedded within the stirring shaft, the channel I extending along the length of the stirring shaft, with its right end extending vertically out of the corresponding position on the right side of the housing, and its left end extending to the position of the leftmost connecting rod; a matching channel III is coaxially embedded within each stirring blade, each channel III being arc-shaped and not extending beyond the corresponding stirring blade; several air nozzles are evenly spaced and vertically embedded on the inner arc surface of each stirring blade, each air nozzle being independently configured with respect to the corresponding connecting rod, extending radially towards the interior of the stirring blade, and communicating with the corresponding channel III; a channel II is coaxially embedded within each connecting rod, one end of each channel II extending vertically along the length of the corresponding connecting rod into the interior of the stirring shaft, and communicating with channel I; the other end of each channel II extending vertically along the length of the corresponding connecting rod into the interior of the corresponding stirring blade, and communicating with channel III.

[0013] Preferably, it also includes a heating box, a fan, and an air duct; a heating box is fixedly installed on the right side of the box near its bottom, and a fan is installed in the middle of the upper surface of the heating box. An air duct is also sealed and connected to the output end of the fan. The upper end of the air duct is sealed and connected to the right end of channel I. The fan blows hot air sequentially through channel I, channel II, and channel III to the corresponding air outlets for heating.

[0014] The beneficial effects of this utility model are:

[0015] (1) By using the heating box, fan, air duct, channel I, channel II, channel III and air outlet in combination, this utility model can continuously heat the fine sand and dye during the stirring and mixing process of the stirring blades, thereby avoiding uneven heating and improving the stirring and mixing effect.

[0016] (2) The connecting rods of this utility model are staggered along the circumference of the stirring shaft, so that the connecting rods can play a certain auxiliary role in stirring and mixing fine sand and dye.

[0017] (3) By using the first electric push rod, the second electric push rod and the brush together, the dye can be added evenly through the hollow plate, thereby avoiding the phenomenon of sticky clumping and improving the quality of colored sand. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a colored sand preparation device with heat storage and heat preservation effect according to the present invention.

[0020] Figure 2 for Figure 1 An enlarged schematic diagram of the stirring component.

[0021] Among them, 1-box body; 2-perforated plate; 3-servo motor; 4-stirring shaft; 5-connecting rod; 6-stirring blade; 7-heating box; 8-fan; 9-air duct; 10-channel I; 11-channel II; 12-channel III; 13-air outlet; 14-circular track; 15-feed pipe; 16-solenoid valve I; 17-feeding pipe; 18-solenoid valve II; 19-first electric push rod; 20-second electric push rod; 21-brush; 22-connecting rod; 23-reinforcing rod; 24-discharge pipe; 25-solenoid valve III; 26-slide groove. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below through specific embodiments.

[0023] This utility model discloses a colored sand preparation device with heat storage and insulation effect, comprising a box body 1, a perforated plate 2, a mixing component, and a flat spreading component; the specific structure is as follows: Figure 1 , Figure 2 As shown, the box 1 is a horizontally arranged hollow cuboid structure, and a matching perforated plate 2 is horizontally arranged in the upper middle position inside it. Inside the box 1, below the perforated plate 2, a stirring component is provided to stir the fine sand. Inside the box 1, above the perforated plate 2, a spreading component is provided to evenly spread the dye onto the perforated plate 2, which is then evenly added to the fine sand and mixed with it. The aperture of the perforated plate 2 is slightly larger than the particle size of the dye, and with the assistance of the spreading component, the dye is evenly added downwards through the perforated plate 2.

[0024] This utility model's flattening assembly includes a first electric push rod 19, a reinforcing rod 23, a second electric push rod 20, a brush 21, a connecting rod 22, and a slider; as shown... Figure 1 , Figure 2 As shown, two first electric push rods 19 are horizontally screwed together at intervals on the right side of the housing 1, relative to the area above the perforated plate 2. The extension and retraction of the two first electric push rods 19 are synchronized. A reinforcing rod 23 is inclinedly provided between the tail of each first electric push rod 19 and the right side of the housing 1, and the reinforcing rod 23 is used to reinforce and fix the corresponding first electric push rod 19. The pushing end of each first electric push rod 19 extends horizontally and vertically into the interior of the housing 1, and is fixedly connected to the tail of the vertically arranged corresponding second electric push rod 20, thereby driving the corresponding second electric push rod 20 to perform horizontal reciprocating motion in the area above the perforated plate 2 inside the housing 1. At the tail of each second electric push rod 20 A vertical connecting rod 22 is also provided, and the upper end of each connecting rod 22 is horizontally and laterally connected to the inner top surface of the box 1 through a slider, thereby ensuring the stability of the horizontal movement of the second electric push rod 20; the extension and retraction actions of the two second electric push rods 20 are synchronized, and their pushing ends are both set vertically downward. A brush 21 matching the longitudinal width of the hollow plate 2 is also provided at the pushing end of the two second electric push rods 20. The flattening end of the brush 21 is set downward towards the hollow plate 2 and contacts the upper surface of the hollow plate 2; through the cooperation of the first electric push rod 19 and the second electric push rod 20, the brush 21 moves horizontally and vertically, spreading the dye evenly on the hollow plate 2, and then adding it evenly downward through the hollow plate 2.

[0025] The first electric actuator 19 and the second electric actuator 20 are both conventional electric actuators, both controlled by a controller. Therefore, their movements can be synchronized by the controller. This is existing technology and will not be described in detail here.

[0026] like Figure 1 , Figure 2 As shown, a feeding pipe 17 is vertically provided in the middle of the upper surface of the box 1, and a solenoid valve II 18 is connected to it. The solenoid valve II 18 controls the opening and closing of the feeding pipe 17. The lower end of the feeding pipe 17 extends vertically downward out of the inner top surface of the box 1 and does not interfere with the laying action of the laying component. Dye is then added to the perforated plate 2 through the feeding pipe 17.

[0027] like Figure 1 , Figure 2 As shown, a feed pipe 15 is also inclinedly embedded and connected on the left side of the box 1 relative to the top of the stirring assembly. The feed pipe 15 is spaced below the hollow plate 2, and its lower end extends downward into the interior of the box 1, without interfering with the stirring action of the stirring assembly. Fine sand is added into the box 1 through the feed pipe 15. A solenoid valve I 16 is also connected to the upper end of the feed pipe 15, and the opening and closing of the feed pipe 15 is controlled by the solenoid valve I 16.

[0028] like Figure 1 , Figure 2 As shown, a feeding pipe 24 is vertically installed in the middle of the lower surface of the box 1, and a solenoid valve III 25 is connected to it. The solenoid valve III 25 controls the opening and closing of the feeding pipe 24. The upper end of the feeding pipe 24 extends vertically upward to the inner bottom surface of the box 1 and communicates with the interior of the box 1. It does not interfere with the operation of the stirring components, and the colored sand generated by the mixture is collected through the feeding pipe 24.

[0029] The stirring assembly of this utility model includes a servo motor 3, a stirring shaft 4, a connecting rod 5, and a stirring blade 6; as shown... Figure 1 , Figure 2As shown, a servo motor 3 is horizontally positioned slightly below the center of the left side of the housing 1. The servo motor 3 is spaced below the feed pipe 15, and its output extends horizontally and vertically into the interior of the housing 1. It is coaxially connected to the left end of the horizontally positioned stirring shaft 4 via a coupling. The right end of the stirring shaft 4 is rotatably connected to the right inner side wall of the housing 1 around its own axis. Driven by the servo motor 3, the stirring shaft 4 rotates around its own axis. Inside the housing 1, arc-shaped stirring blades are respectively provided on the upper and lower sides relative to the stirring shaft 4. 6. The lateral length of each stirring blade 6 is matched with the length of the stirring shaft 4. Two stirring blades 6 are spaced apart below the hollow plate 2 and are coaxially spaced with the stirring shaft 4. Several connecting rods 5 are also spaced apart laterally between the inner arc surface of each stirring blade 6 and the outer circumferential surface of the stirring shaft 4. The connecting rods 5 are staggered left and right relative to the adjacent connecting rods 5 on the upper and lower sides of the stirring shaft 4. The two stirring blades 6 are fixed on the stirring shaft 4 by the connecting rods 5, and the stirring blades 6 rotate with the stirring shaft 4 to stir and mix the fine sand and dye.

[0030] like Figure 1 , Figure 2 As shown, at the middle of the left and right end faces of each stirring blade 6, a groove 26 matching the annular track 14 is coaxially and vertically embedded. Each groove 26 is arc-shaped, and its two ends extend vertically out of the end face of the corresponding stirring blade 6. Annular tracks 14 are also fixedly attached to the left and right inner side walls of the housing 1. Each annular track 14 is coaxially spaced with the stirring shaft 4, and its position matches the opening position of the corresponding groove 26. Thus, the stability of the rotation of the stirring blade 6 is ensured by the cooperation of the annular track 14 and the groove 26.

[0031] like Figure 1 , Figure 2As shown, a channel I10 is coaxially embedded within the stirring shaft 4, extending along the length of the stirring shaft 4, with its right end vertically extending out of the corresponding position on the right side of the housing 1, and its left end extending to the position near the leftmost connecting rod 5; a matching channel III12 is coaxially embedded within each stirring blade 6, each channel III12 being arc-shaped and not extending out of the corresponding stirring blade 6; several air nozzles 13 are evenly distributed and vertically embedded on the inner arc surface of each stirring blade 6, each air nozzle 13 being... Each connecting rod 5 is designed to be independent of the corresponding connecting rod 5, and each of them extends radially toward the interior of the corresponding stirring blade 6 and is connected to the corresponding channel Ⅲ12. Each connecting rod 5 is also coaxially embedded with a channel Ⅱ11. One end of each channel Ⅱ11 extends vertically along the length of the corresponding connecting rod 5 to the interior of the stirring shaft 4 and is connected to the channel Ⅰ10. The other end of each channel Ⅱ11 extends vertically along the length of the corresponding connecting rod 5 to the interior of the corresponding stirring blade 6 and is connected to the channel Ⅲ12.

[0032] like Figure 1 , Figure 2 As shown, a heating box 7 is fixedly installed on the right side of the box 1 near its bottom end, and a fan 8 is installed in the middle of the upper surface of the heating box 7. A duct 9 is also sealed and connected to the output end of the fan 8. The upper end of the duct 9 is sealed and connected to the right end of the channel I 10. The fan 8 blows hot air sequentially through the channel I 10, the channel II 11, and the channel III 12 to the corresponding air outlet 13 for heating.

[0033] The working principle of this utility model:

[0034] First, fine sand is added into the box 1 through the feed pipe 15, and under the drive of the servo motor 3, the stirring blade 6 rotates with the stirring shaft 4 to stir the fine sand; at the same time, the blower 8 blows hot air into the fine sand through the channel I 10, the channel II 11, the channel III 12 and the air outlet 13 in sequence, thereby heating the fine sand.

[0035] Then, the dye is added through the feeding pipe 17, and the dye can be evenly added through the perforated plate 2 by the combined use of the first electric push rod 19, the second electric push rod 20 and the brush 21; at this time, the fine sand and fuel can be stirred and mixed by the stirring blade 6. During this process, the connecting rod 5 and the stirring blade 6 have a certain amount of heat due to the hot air, which helps to heat evenly.

[0036] After the colored sand is mixed and dried, open the solenoid valve Ⅲ25, and the colored sand can be collected through the feed pipe 24.

[0037] The beneficial effects of this utility model are:

[0038] (1) By using the heating box 7, fan 8, air duct 9, channel I 10, channel II 11, channel III 12 and air outlet 13 together, this utility model can continuously heat the fine sand and dye during the stirring and mixing process of the stirring blade 6, thereby avoiding uneven heating and improving the stirring and mixing effect.

[0039] (2) The connecting rods 5 of this utility model are staggered along the circumference of the stirring shaft 4, so that the connecting rods 5 can play a certain auxiliary role in stirring and mixing fine sand and dye.

[0040] (3) By using the first electric push rod 19, the second electric push rod 20 and the brush 21 together, the dye can be added evenly through the hollow plate 2, thereby avoiding the phenomenon of sticky clumping and improving the quality of colored sand.

[0041] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the concept and scope of the present utility model. Without departing from the design concept of the present utility model, all modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope of the present utility model. The technical content for which protection is sought in the present utility model has been fully recorded in the technical requirements.

Claims

1. A colored sand preparation device with heat storage and insulation effect, characterized in that: The device includes a box body, a perforated plate, a mixing component, and a spreading component. The box body is a horizontally arranged hollow cuboid structure, and a matching perforated plate is horizontally arranged in the upper middle position inside the box body. A mixing component is also arranged inside the box body below the perforated plate, and the fine sand is stirred by the mixing component. A spreading component is also arranged inside the box body above the perforated plate, and the dye is evenly spread on the perforated plate by the spreading component, and then evenly added to the fine sand through the perforated plate and mixed with the fine sand.

2. The colored sand preparation device with heat storage and insulation effect according to claim 1, characterized in that: The perforated plate has a hole diameter slightly larger than the dye particle size, and with the help of the flat-laying component, the dye is evenly added downward through the perforated plate.

3. The colored sand preparation device with heat storage and insulation effect according to claim 1, characterized in that: The tiling assembly includes a first electric push rod, a reinforcing rod, a second electric push rod, a brush, a connecting rod, and a slider. Two first electric push rods are horizontally screwed at intervals on the right side of the housing relative to the top of the perforated plate. The extension and retraction of the two first electric push rods are synchronized. A reinforcing rod is inclined between the tail of each first electric push rod and the right side of the housing, reinforcing and fixing the corresponding first electric push rod. The pushing end of each first electric push rod extends horizontally and vertically into the interior of the housing and is fixedly connected to the tail of the vertically positioned corresponding second electric push rod, thereby driving the corresponding second electric push rod to move horizontally within the housing relative to the area above the perforated plate. The device exhibits a reciprocating motion. A connecting rod is vertically positioned at the tail of each second electric push rod, and the upper end of each connecting rod is horizontally slidably connected to the inner top surface of the housing via a slider, thereby ensuring the stability of the second electric push rod's horizontal movement. The extension and retraction of the two second electric push rods are synchronized, and their pushing ends are both vertically downwards. A brush matching the longitudinal width of the perforated plate is also provided at the pushing end of each of the two second electric push rods. The flattening end of the brush faces downwards towards the perforated plate and contacts the upper surface of the perforated plate. Through the cooperation of the first and second electric push rods, the brush moves horizontally and vertically, spreading the dye evenly on the perforated plate, and then uniformly adding it downwards through the perforated plate.

4. The colored sand preparation device with heat storage and insulation effect according to claim 3, characterized in that: It also includes a feeding pipe and a solenoid valve II; a feeding pipe is vertically provided in the middle of the upper surface of the box, and a solenoid valve II is connected to it, and the opening and closing of the feeding pipe is controlled by the solenoid valve II; the lower end of the feeding pipe extends vertically downward out of the inner top surface of the box, and does not interfere with the laying action of the laying component, and then adds dye to the perforated plate through the feeding pipe.

5. The colored sand preparation device with heat storage and insulation effect according to claim 1, characterized in that: It also includes a feed pipe and a solenoid valve I; a feed pipe is also inclinedly embedded and connected on the left side of the box body relative to the upper part of the stirring assembly. The feed pipe is spaced below the perforated plate, and its lower end extends downwards into the interior of the box body without interfering with the stirring action of the stirring assembly, thereby adding fine sand into the box body through the feed pipe; a solenoid valve I is also connected to the upper part of the feed pipe, and the solenoid valve I controls the opening and closing of the feed pipe.

6. The colored sand preparation device with heat storage and insulation effect according to claim 1, characterized in that: It also includes a feeding pipe and a solenoid valve III; a feeding pipe is vertically installed in the middle of the lower surface of the box, and a solenoid valve III is connected to it, and the opening and closing of the feeding pipe is controlled by the solenoid valve III; the upper end of the feeding pipe extends vertically upward to the inner bottom surface of the box and communicates with the interior of the box, and does not interfere with the operation of the stirring component, so as to collect the colored sand generated by mixing through the feeding pipe.

7. The colored sand preparation device with heat storage and heat preservation effect according to claim 5, characterized in that: The stirring assembly includes a servo motor, a stirring shaft, a connecting rod, and stirring blades. A servo motor is horizontally positioned slightly below the center of the left side of the housing. The servo motor is spaced below the feed pipe, and its output end extends horizontally and vertically into the interior of the housing. It is coaxially connected to the left end of the horizontally positioned stirring shaft via a coupling. The right end of the stirring shaft is rotatably connected to the right inner sidewall of the housing around its own axis, and under the drive of the servo motor, the stirring shaft rotates around its own axis. Inside the housing, relative to the stirring shaft... The lower two sides are also provided with arc-shaped stirring blades, and the lateral length of each stirring blade matches the length of the stirring shaft. The two stirring blades are spaced apart below the hollow plate and are coaxially spaced with the stirring shaft. Several connecting rods are also arranged in a horizontal sequence between the inner arc surface of each stirring blade and the outer circumferential surface of the stirring shaft. The connecting rods are staggered left and right relative to the adjacent connecting rods on the upper and lower sides of the stirring shaft. The two stirring blades are fixed on the stirring shaft by the connecting rods, and the stirring blades rotate with the stirring shaft to stir and mix the fine sand and dye.

8. The colored sand preparation device with heat storage and insulation effect according to claim 7, characterized in that: It also includes an annular track; at the middle of the left and right end faces of each of the stirring blades, a groove matching the annular track is respectively embedded coaxially and vertically. Each groove is arc-shaped, and its two ends extend vertically outward from the end face corresponding to the stirring blade. Annular tracks are also fixedly attached to the left and right inner side walls of the housing. Each annular track is coaxially spaced from the stirring shaft, and its position matches the opening position of the corresponding groove. Thus, the cooperation of the annular track and the groove ensures the stability of the stirring blade rotation.

9. A colored sand preparation device with heat storage and insulation effect according to claim 7, characterized in that: A channel I is coaxially embedded within the stirring shaft, extending along the length of the stirring shaft, with its right end extending vertically out of the corresponding position on the right side of the housing, and its left end extending to the position of the leftmost connecting rod. A matching channel III is coaxially embedded within each stirring blade, each channel III being arc-shaped and not extending beyond the corresponding stirring blade. Several air nozzles are evenly spaced and vertically embedded on the inner arc surface of each stirring blade, each air nozzle being independently positioned from the corresponding connecting rod and extending radially towards the interior of the stirring blade, communicating with the corresponding channel III. A channel II is coaxially embedded within each connecting rod, with one end extending vertically along the length of the corresponding connecting rod into the interior of the stirring shaft and communicating with channel I; the other end of each channel II extends vertically along the length of the corresponding connecting rod into the interior of the corresponding stirring blade and communicates with channel III.

10. A colored sand preparation device with heat storage and insulation effect according to claim 9, characterized in that: It also includes a heating box, a fan, and an air duct; a heating box is fixedly installed on the right side of the box near its bottom, and a fan is installed in the middle of the upper surface of the heating box. An air duct is also sealed and connected to the output end of the fan. The upper end of the air duct is sealed and connected to the right end of channel I. The fan blows hot air sequentially through channel I, channel II, and channel III to the corresponding air outlets for heating.

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