Artificial flower thermochromic coating spraying device
By using tilted and rotating spraying in a vacuum low-temperature drying oven, the problems of uncontrollable flower shapes and uneven coloring in artificial flowers have been solved, thus enhancing the ornamental value of artificial flowers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-03-31
AI Technical Summary
Existing thermochromic coating spraying methods result in uncontrollable artificial flower shapes, with petals spreading out and difficulty in achieving a uniform and natural color fading effect, thus affecting their ornamental value.
An artificial flower thermochromic coating spraying device was designed. It adopts a vacuum low-temperature environment in a drying chamber and a rotary spraying technology. The coating is sprayed along the top of the flower by tilting and rotating the spray gun, and the spraying is repeated under vacuum low temperature to maintain the flower shape and obtain natural color fading.
This effectively prevents artificial flower petals from scattering due to gravity, ensuring the stability of the flower shape. Furthermore, the paint is applied through multiple natural drops to create a uniform and natural color, enhancing the aesthetic appeal of the artificial flowers.
Smart Images

Figure CN224057705U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of paint spraying technology, specifically relating to a device for spraying thermochromic paint for artificial flowers. Background Technology
[0002] For the artificial flower market, its ornamental value is a key factor influencing sales and price. To enhance the visual appeal of artificial flowers, manufacturers choose to color them to improve their aesthetics. Thermochromic coatings, which display different colors at different temperatures, are widely used to add a unique visual effect. However, existing thermochromic coating application methods involve fixing the artificial flower vertically and spraying the color around it with a spray gun. Because the coating contains moisture, the petals become damp and spread out due to gravity. Furthermore, the coating dries slowly in natural environments, causing the flower's shape to deform more significantly when wet, resulting in uncontrollable shape changes. Additionally, because the artificial flower is fixed during spraying, it's difficult to achieve a uniform and natural color payoff, easily forming a thick coating layer that reduces the flower's ornamental value. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model designs an artificial flower thermochromic coating spraying device to avoid changes in the shape of artificial flowers during the spraying process of artificial flower thermochromic coating, while obtaining a uniform and natural color effect and ensuring the ornamental attributes of artificial flowers.
[0004] This utility model discloses a thermochromic coating spraying device for artificial flowers, comprising a drying chamber with a door on the front and a coating tank installed on the upper right outer wall of the drying chamber. The coating tank is connected to a spray gun that is inclinedly arranged inside the drying chamber. A suction pump is installed at the center of the top surface of the drying chamber, and a cooling water tank is installed to the left of the suction pump. The cooling water tank is connected to the inlet and outlet of a circulating water pipe located on the left side inside the drying chamber, and a circulating water pump is also installed at the outlet of the circulating water pipe. A rotating cylinder for fixing artificial flowers is also provided inside the drying chamber. The rotating cylinder is connected to an inclined mounting bracket so that the rotating cylinder corresponds to the spray gun. A rotation drive mechanism is also connected to the end of the rotating cylinder.
[0005] Specifically, the rotary drive mechanism includes a universal joint connected inside the mounting bracket. The mounting bracket is configured as a U-shaped bracket tilted to the right. The input shaft of the universal joint extends horizontally through the left side of the mounting bracket, and the output shaft of the universal joint extends obliquely through the right side of the mounting bracket and is fixedly connected to the end of the rotating drum head. The input shaft end of the universal joint is connected to a driven bevel gear, which meshes with a driving bevel gear. The driving bevel gear is connected to the drive shaft of the water turbine, and the water turbine is connected to the circulating water pipe.
[0006] Specifically, the cooling water tank is equipped with a cooling module, and the drying oven is equipped with a temperature sensor. Both the cooling module and the temperature sensor are electrically connected to the control panel located on the front of the drying oven.
[0007] Specifically, the outer walls of the inner and outer sides of the rotating cylinder are symmetrically hollowed out, and a pair of clamping rings are provided at the end of the rotating cylinder. Adjusting shafts that pass through the outer walls of the rotating cylinder are respectively connected to the clamping rings. Adjusting handles are connected to the ends of the adjusting shafts, and springs are provided between the adjusting handles and the outer walls of the rotating cylinder.
[0008] Compared with the prior art, the beneficial effects of this utility model are:
[0009] This invention creates a vacuum low-temperature drying environment in a drying oven and tilts and rotates the artificial flower during the coating process. During this tilting and rotation, the spray gun sprays thermochromic paint along the top of the flower. The petals alternately occupy the upper and lower parts of the flower, reducing the impact of gravity on the petals and preventing them from spreading out due to gravity during spraying, thus maintaining the flower shape. Simultaneously, by repeatedly rotating and spraying the artificial flower in the vacuum low-temperature drying environment after drying, the thermochromic paint falls naturally from top to bottom multiple times, resulting in a more natural color drop and preventing the formation of a thick paint layer. This reflects the material characteristics of the artificial flower itself and avoids reducing its ornamental value. Attached Figure Description
[0010] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments are briefly introduced below.
[0011] Figure 1 This is a schematic diagram of the overall structure of the spraying device in Example 1.
[0012] Figure 2 This is a schematic diagram of the internal structure of the spraying device in Example 1.
[0013] Figure 3 This is a schematic diagram of the connection structure of the rotary drive mechanism in Embodiment 1.
[0014] Figure 4 yes Figure 3 A schematic diagram of the partial structure at point A in the middle.
[0015] Figure 5 This is a schematic diagram of the connection structure between the water turbine and the circulating water pipe in Example 1.
[0016] Figure 6 This is a schematic diagram of the turbine runner structure in Example 1.
[0017] In the attached diagram, the structural names represented by each number are as follows:
[0018] 1-Drying oven, 101-Door, 2-Paint tank, 201-Feed pipe, 3-Spray gun, 4-Suction pump, 5-Refrigeration water tank, 501-Refrigeration module, 6-Circulating water pipe, 601-Fixing buckle, 7-Circulating water pump, 8-Rotating cylinder, 801-Clamping ring, 802-Adjusting shaft, 803-Adjusting handle, 804-Spring, 9-Mounting bracket, 10-Universal joint, 1001-Input shaft, 1002-Output shaft, 11-Driven bevel gear, 12-Driven bevel gear, 13-Water turbine, 1301-Drive shaft, 1302-Roller, 15-Temperature sensor, 16-Control panel, 17-Artificial flower. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] Example 1
[0021] For easier application of thermochromic coatings to artificial flowers, please refer to [reference needed]. Figures 1 to 6As shown, the spraying device for the thermochromic paint of artificial flowers provided in this embodiment includes a drying chamber 1. A door 101 is provided on the front of the drying chamber 1. When the door 101 is closed, the interior of the drying chamber 1 forms a sealed space. A paint tank 2 is installed on the upper right outer wall of the drying chamber 1. Two feed pipes 201 are connected to the paint tank 2 to replenish the thermochromic paint inside. Switch valves are provided on the feed pipes 201 to ensure the sealing effect of the paint tank 2. The paint tank 2 is connected to a spray gun 3, which is inclinedly arranged inside the drying chamber 1, and the spray gun 3 sprays the paint. A suction pump 4 is installed at the center of the top surface of the drying chamber 1 to draw air from inside the drying chamber 1, creating a realistic thermochromic effect. A vacuum environment is created. A cooling water tank 5 is installed on the left side of the suction pump 4. A cooling module 501 is installed on the cooling water tank 5. The cooling module 501 cools the inside of the cooling water tank 5, thereby controlling the temperature of the cooling water. The cooling water tank 5 is connected to the inlet and outlet of the circulating water pipe 6 located on the left side inside the drying chamber 1. The circulating water pipe 6 is vertically connected to the inner wall of the drying chamber 1 by a fixing buckle 601. A circulating water pump 7 is also installed at the outlet of the circulating water pipe 6. The circulating water pump 7 draws the cooling water inside the circulating water pipe 6 for circulation, thereby forming a water-cooled temperature control system to create a low-temperature environment inside the drying chamber 1; thus creating a vacuum low-temperature environment inside the drying chamber 1. The drying oven 1 is also equipped with a temperature sensor 15. The refrigeration module 501 and the temperature sensor 15 are electrically connected to the control panel 16 on the front of the drying oven 1. The control panel 16 has a display screen that displays the water temperature in the cooling water tank 5 and the temperature inside the drying oven 1. The control panel 16 is also equipped with six control buttons. Three of the buttons control the opening and closing of the refrigeration module 501 and the increase and decrease of the refrigeration temperature, respectively. The other three buttons control the start and stop of the circulating water pump 7, the suction pump 4, and the spray gun 3, respectively.
[0022] The drying chamber 1 also contains a rotating cylinder 8 for fixing the artificial flower 17. The rotating cylinder 8 is connected to an inclined mounting bracket 9, so that the rotating cylinder 8 corresponds to the spray gun 3. The end of the rotating cylinder 8 is also connected to a rotation drive mechanism. When using thermochromic paint, the decolorized artificial flower 17 is quickly dried in the drying chamber 1 using a vacuum drying method, causing the moisture and bleach in the plant material to evaporate or sublimate rapidly. Then, during the paint spraying process, the artificial flower 17 is tilted and rotated. During the tilting and rotation, the spray gun 3 sprays the thermochromic paint onto the top of the flower, allowing the pigment to fall naturally. At the same time, the artificial flower 17 is dried again, and the spraying can be repeated several times. During this process, the petals of the artificial flower 17 are alternately located at the top or bottom, reducing the influence of gravity on the petals and preventing the petals of the artificial flower 17 from spreading out due to gravity during the spraying process, thus maintaining the flower shape. Meanwhile, by creating a vacuum low-temperature drying environment, the artificial flower 17 is rotated and sprayed multiple times after drying. The thermochromic paint falls naturally from top to bottom multiple times, resulting in a more natural color drop. It is not easy to form a thick paint layer, which can reflect the material characteristics of the artificial flower 17 itself and avoid reducing the ornamental value of the artificial flower 17.
[0023] Specifically, the rotary drive mechanism in this embodiment includes a universal joint 10 connected inside the mounting bracket 9. The mounting bracket 9 is configured as a U-shaped bracket with the right side tilted. The input shaft 1001 of the universal joint 10 extends horizontally through the left side of the mounting bracket 9, and the output shaft 1002 of the universal joint 10 extends obliquely through the right side of the mounting bracket 9 and is fixedly connected to the head end of the rotating cylinder 8. The input shaft 1001 and the output shaft 1002 are respectively provided with bearings and connected to the inside of the side wall of the mounting bracket 9. The end of the input shaft 1001 of the universal joint 10 is also connected to a driven bevel gear 11. The driven bevel gear 11 is meshed with a driving bevel gear 12. The driving bevel gear 12 is connected to the drive shaft 1301 of the water turbine 13. The water turbine 13 is connected to the circulating water pipe 6.
[0024] When spraying the color-changing paint, after the artificial flower 17 is installed and fixed inside the rotating cylinder 8, the cooling module 501 is started and the temperature is adjusted. Then, the circulating water pump 7 and the suction pump 4 are started to create a low-temperature vacuum environment. During this process, the water in the circulating water pipe 6 impacts the rotor 1302 inside the water turbine 13, causing the rotor 1302 to rotate. The rotor 1302 drives the drive shaft 1301 to rotate, thereby driving the rotation of the active bevel gear 12. Then, under the connection and transmission of the universal joint 10, the tilted rotating cylinder 8 rotates, thereby driving the artificial flower 17 to rotate in the tilted position.
[0025] Because the artificial flower 17 retains its original shape and a section of its stem as much as possible during the manufacturing process, and the stem is mostly curved, the outer walls of the rotating cylinder 8 are symmetrically hollowed out on both sides to better accommodate and secure the artificial flower 17. A pair of clamping rings 801 are installed at the end of the rotating cylinder 8. Adjusting shafts 802, which protrude from the outer wall of the rotating cylinder 8, are connected to the clamping rings 801. The ends of the adjusting shafts 802 are connected to adjusting handles 803, and springs 804 connect the adjusting handles 803 to the outer wall of the rotating cylinder 8. By pulling the adjusting handles 803, the space between the clamping rings 801 is increased due to the adjustment shafts 802. After the artificial flower 17 is placed in, the clamping rings 801 are reset and fixed at the top of the stem under the action of the springs 804, thus securing the artificial flower 17. At the same time, the stem is located inside the rotating cylinder 8, so even if the stem is curved, the hollowed-out sides of the rotating cylinder 8 can accommodate the stem well.
[0026] Example 2
[0027] The difference between this embodiment and embodiment 1 is that the rotation drive mechanism is set to be a drive motor installed inside the mounting bracket 9, with its output end connected to the rotating cylinder 8. The drive motor directly drives the rotating cylinder 8 to rotate, so as to obtain the tilting and rotation effect of the artificial flower.
[0028] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not describe all details exhaustively, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification.
Claims
1. An artificial flower thermochromic paint spraying device, characterized by, The utility model provides a kind of artificial flower spraying and drying device, including dry box (1), the dry box (1) front is provided with box door (101), and dry box (1) right side upper outer wall is equipped with paint tank (2), and paint tank (2) is connected with the spraying gun (3) of the inside inclined arrangement of dry box (1), and the suction pump (4) is installed in the center of the top surface of dry box (1), and the refrigeration water tank (5) is installed in the left side of suction pump (4), and the refrigeration water tank (5) is connected with the inlet and outlet water end of circulating water pipe (6) located in the left side of dry box (1) and communicates, and the outlet water end of circulating water pipe (6) is also equipped with circulating water pump (7);The dry box (1) is also provided with rotating drum (8) for fixing artificial flower (17), and rotating drum (8) is connected with the mounting bracket (9) of inclined arrangement, so that rotating drum (8) corresponds with spraying gun (3), and the end of rotating drum (8) is also connected with rotating drive mechanism.
2. The artificial flower thermochromic paint spraying device according to claim 1, characterized by, The rotating drive mechanism includes a universal joint (10) connected inside the mounting bracket (9), the mounting bracket (9) is set as a right side inclined U-shaped bracket, the input shaft (1001) of the universal joint (10) is horizontally inserted into the left side of the mounting bracket (9), the output shaft (1002) of the universal joint (10) is obliquely inserted into the right side of the mounting bracket (9) and fixedly connected with the head end of the rotating drum (8);The end of the input shaft (1001) of the universal joint (10) is connected with a driven bevel gear (11), the driven bevel gear (11) is engaged with a driving bevel gear (12) below, the driving bevel gear (12) is connected to the driving shaft (1301) of the water turbine (13), and the water turbine (13) is connected to the circulating water pipe (6).
3. The artificial flower thermochromic paint spraying apparatus according to claim 1, characterized by A refrigeration module (501) is provided on the refrigeration water tank (5), a temperature sensor (15) is provided inside the dry box (1), and the refrigeration module (501) and the temperature sensor (15) are electrically connected to the control panel (16) provided on the front of the dry box (1).
4. The artificial flower thermochromic paint spraying apparatus according to claim 1, wherein The inner and outer walls of the rotating drum (8) are symmetrically hollowed out, and a pair of clamping rings (801) are provided at the end of the rotating drum (8), and adjusting shafts (802) are connected to the clamping rings (801) respectively and pass through the outer wall of the rotating drum (8), the ends of the adjusting shafts (802) are connected to adjusting handles (803), and springs (804) are arranged between the adjusting handles (803) and the outer wall of the rotating drum (8).