Sealing and drying system for plastic model subjected to coating immersion

Abstract

The invention relates to the technical field of plastic drying treatment, in particular to a sealed drying system for a plastic model subjected to paint dipping, a conveying rail is arranged to convey and transfer the plastic model, a series of processing operations are carried out in an assembly line mode, and in addition, a button is arranged in a drying bin in a drying station; when the conveying rail drives the plastic model to move to a preset position, the button can be automatically extruded to be triggered, then corresponding actions of automatic sealing and hot air drying are started, automation is improved, and the machining efficiency is improved. The movable closing plates and the movable cylinders are arranged in the drying bin and can be lifted after the plastic model enters the drying bin, the air nozzles are arranged on the movable closing plates and the movable cylinders, the plastic model is dried in a hot air spraying mode, rapid drying can be achieved, the other four movable closing plates are combined to form a space with the closed periphery, and therefore the plastic model can be rapidly dried. And a closed space can be formed in cooperation with a connecting bottom plate at the bottom and a top cover plate of the drying bin, and hot air dissipation is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of plastic drying treatment, in particular to a sealing drying system for a plastic model after it has been coated. Background Art

[0002] After coating plastic parts, efficient drying processes are required to remove contaminants and moisture to prevent defects such as bubbles, delamination, and decreased mechanical properties during subsequent processing. Drying methods for coating plastic parts include hot air drying, cold air drying, vacuum drying, and chemical solvent-assisted drying. Chemical solvent-assisted drying is prone to environmental pollution, while vacuum drying is costly. Therefore, hot air drying and cold air drying are the most commonly used methods.

[0003] When drying plastic parts after coating, if cold air drying (20-40°C) is used, although heat damage can be avoided, there are some defects, such as low drying efficiency, easy residue of pollutants, and the need for a dehumidification system, which leads to a decrease in the overall efficiency of plastic model processing and production.

[0004] The use of hot air drying method can quickly dry the materials, which is not only effective but also faster. However, hot air drying is best carried out in a sealed environment, which can improve the utilization rate of heat, reduce costs, and reduce heat dissipation to avoid excessive temperature in the processing workshop.

[0005] However, drying in a sealed space typically requires workers to manually open the drying chamber, place the plastic model inside, and then close it again. This process is difficult to automate, which reduces the degree of automation in the entire plastic model production process and hinders improving overall plastic model production efficiency. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to propose a sealed drying system for plastic models after they are coated, so as to solve the technical problem in the prior art that the drying process of plastic models after they are coated is difficult to be automated through assembly line operations, resulting in low efficiency.

[0007] Based on the above objectives, the present invention provides a sealed drying system for plastic models after coating, comprising a conveyor rail for transporting plastic models and a drying station located on the conveyor rail, wherein the drying station is provided with:

[0008] A drying chamber that is connected front to back, wherein a movable plywood and a movable cylinder are movably connected in the drying chamber, wherein the movable plywood is provided with four pieces, and the four movable plywoods form a space that is enclosed on all sides, wherein a plurality of air nozzles are provided on the inner surface of the movable plywood, and a plurality of air nozzles are also provided on the outer wall of the movable cylinder, and a connecting bottom plate is fixedly connected to the bottom of the movable plywood and the movable cylinder;

[0009] A base is provided at the bottom of the drying chamber, the connecting base plate is located in a cavity inside the base, and a circle of sealing strip is provided on the outer wall of the connecting base plate. The connecting base plate is slidably connected to the inner wall of the base through the sealing strip, the air nozzle is connected to the inner cavity of the base, and the bottom of the base is also provided with an air inlet connected to the inner cavity of the base, and the air inlet is also connected to an external hot air source.

[0010] Furthermore, a cover plate is provided at the upper end of the drying bin, and the conveying rail is located under the cover plate and passes through the drying bin in a front-to-back direction.

[0011] Furthermore, the upper ends of the front and rear movable plywood are provided with track matching grooves that match the conveying rails.

[0012] Furthermore, the plastic model is hung on the bottom of the connecting piece by a sling, and the sling is connected to the plastic model through a hook at the bottom. The connecting piece is slidably connected to the conveyor rail, and a conveyor belt is slidably connected to the conveyor rail. The conveyor belt is provided with a number of equidistantly arranged pushing blocks, and the conveyor belt moves with the connecting piece through the pushing blocks.

[0013] Furthermore, a button is provided at the lower end of the cover plate of the drying bin, the top of the button is slidably connected in the drying bin cover plate, and the front and rear edges of the bottom of the button are provided with arc chamfers.

[0014] Furthermore, a baffle is provided on the rear side of the button, the top of the baffle is slidably connected to the drying chamber cover, and an electromagnet is provided above the baffle, and the electromagnet is connected to an external power supply through the button.

[0015] Furthermore, a solenoid valve is provided in the air inlet, and the solenoid valve is connected to an external power supply via a button.

[0016] Furthermore, the movable joint plate and the movable cylinder are both provided with air supply channels, and the bottom of the connecting base is provided with a through hole, and the air nozzle is connected to the inner cavity of the base through the air supply channel and the through hole.

[0017] Furthermore, a sealing plate is provided at the bottom of the connecting bottom plate, and the sealing plate is an L-shaped plate consisting of a vertical portion and a horizontal portion, wherein the horizontal portion of the sealing plate is blocked in the through hole, and the vertical portion of the sealing plate is slidably connected to the side wall of the connecting bottom plate, and a stopper that cooperates with the vertical portion of the sealing plate is provided at the highest point of the inner cavity of the base, and a tension spring is also connected between the sealing plate and the connecting bottom plate.

[0018] Furthermore, a sealing gasket is provided at a position of the horizontal portion of the sealing plate corresponding to the through hole, and a groove is provided at the bottom of the connecting bottom plate, and the tension spring is located in the groove.

[0019] The beneficial effects of the present invention are as follows: 1. By providing a conveyor rail for transporting plastic models, multiple processing stations such as coating and drying of plastic models can be linked together, allowing a series of processing operations to be performed in an assembly line manner, thereby improving processing efficiency. In addition, a button is provided in the drying chamber of the drying station. When the conveyor rail moves the plastic model to a predetermined position, the button is automatically pressed to trigger the corresponding actions of automatic sealing and hot air drying, thereby enhancing automation and further improving processing efficiency.

[0020] 2. The drying chamber in the drying station is connected front to back, so it is convenient for the plastic models to enter and exit. Movable plywood and movable cylinder are set in the drying chamber, which can rise after the plastic model enters the drying chamber. Air nozzles are set on the movable plywood and movable cylinder to dry the plastic model by spraying hot air, which can dry quickly. The other four movable plywood are combined into a space enclosed on all sides. Combined with the connecting bottom plate and the top cover of the drying chamber, a closed space can be formed to reduce heat dissipation.

[0021] 3. The movable plywood and movable cylinder are raised by inflating the inner cavity of the base. When hot air enters the base cavity, the air pressure increases, which in turn lifts the movable plywood and movable cylinder. When the movable plywood and movable cylinder reach their highest point, the sealing plate is blocked by a block and moves downward, revealing the through-hole. At this point, the air nozzle automatically connects to the base, allowing hot air to be blown out for drying. When the movable plywood and movable cylinder reach their highest point, they cooperate with the top cover of the drying chamber to form an enclosed space. Therefore, the air nozzle will only blow air after the enclosed space is formed. It will automatically stop blowing air as soon as the movable plywood and movable cylinder descend, minimizing heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 Schematic diagram of the overall structural principle of the device of the present invention.

[0024] Figure 2 This is a schematic structural diagram of the device of the present invention before drying.

[0025] Figure 3 It is a schematic diagram of the structure of the movable splint and movable cylinder in the device of the present invention.

[0026] Figure 4This is a schematic diagram of the structural principle of the conveyor rail in the device of the present invention for conveying plastic models.

[0027] Figure 5 Schematic diagram of the internal structure of the device of the present invention.

[0028] Figure 6 for Figure 5 Enlarged view of part A.

[0029] Figure 7 for Figure 5 Magnified view of part B.

[0030] Figure 8 It is a schematic diagram of the structure of the device of the present invention after the movable splint and movable cylinder are raised.

[0031] The following are marked in the figure:

[0032] 01. Conveyor rail, 02. Conveyor belt, 03. Push block, 04. Connector, 05. Sling, 06. Hook, 07. Plastic model, 101. Drying chamber, 102. Base, 103. Movable plywood, 104. Movable cylinder, 105. Air nozzle, 106. Track matching groove, 107. Connecting bottom plate, 108. Through hole, 109. Air transmission channel, 110. Air inlet, 111. Solenoid valve, 112. Sealing plate, 113. Tension spring, 114. Sealing gasket, 115. Button, 116. Baffle, 117. Electromagnet. DETAILED DESCRIPTION

[0033] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to specific embodiments.

[0034] It should be noted that, unless otherwise defined, the technical or scientific terms used in the present invention should have the usual meanings understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0035] The first aspect of the present invention is as follows Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, since the drying process is performed in a sealed space, workers are typically required to manually open the drying space, place the plastic model inside, and then close the drying space. This process is difficult to automate, which reduces the degree of automation in the entire plastic model production process and hinders improving overall plastic model production efficiency. Therefore, the present invention designs a conveyor rail 01 for transporting plastic models 07. Conveyor rail 01 transports plastic models 07 and can link multiple processing stations, such as coating and drying, for plastic models 07, allowing a series of processing operations to be performed in an assembly line manner, thereby improving processing efficiency.

[0036] Specifically, a drying station is provided on the conveying rail 01 , and a drying bin 101 that passes through the drying station from front to back, and a base 102 connected to the bottom of the drying bin 101 .

[0037] The drying chamber 101 is movably connected with a movable plywood 103 and a movable cylinder 104. The movable plywood 103 is provided with four pieces, and the four movable plywood 103 form a closed space on all sides. A plurality of air nozzles 105 are provided on the inner surface of the movable plywood 103, and a plurality of air nozzles 105 are also provided on the outer wall of the movable cylinder 104. A connecting bottom plate 107 is fixedly connected to the bottom of the movable plywood 103 and the movable cylinder 104.

[0038] The connecting bottom plate 107 is located in the cavity inside the base 102, and a circle of sealing strip is provided on the outer wall of the connecting bottom plate 107. The connecting bottom plate 107 is slidingly connected to the inner wall of the base 102 through the sealing strip. The air nozzle 105 is connected to the inner cavity of the base 102. The bottom of the base 102 is also provided with an air inlet 110 connected to the inner cavity of the base 102, and the air inlet 110 is also connected to an external hot air source.

[0039] The drying chamber 101 in the drying station is connected from front to back, so it is convenient for the plastic model 07 to enter and exit. A movable movable plywood 103 and a movable cylinder 104 are set in the drying chamber 101, which can be raised after the plastic model 07 enters the drying chamber 101. Air nozzles 105 are set on the movable plywood 103 and the movable cylinder 104 to dry the plastic model 07 by spraying hot air, which can dry quickly. The other four movable plywood 103 are combined into a space enclosed on all sides. Combined with the bottom connecting base plate 107 and the top cover of the drying chamber 101, a closed space can be formed to reduce heat dissipation.

[0040] Preferably, the upper ends of the front and rear movable clamps 103 are provided with track matching grooves 106 that match the conveying rail 01.

[0041] In addition, a cover is provided at the top of the drying chamber 101. The conveyor rail 01 is located beneath the cover and passes through the drying chamber 101 in a front-to-back direction. A button 115 is provided at the bottom of the cover. The top of the button 115 slides into the cover of the drying chamber 101, and the bottom of the button 115 has curved chamfers on its front and back edges.

[0042] Therefore, when the conveyor rail 01 moves the plastic model 07 to the predetermined position, the button 115 can be automatically squeezed to trigger it, thereby starting the corresponding actions of automatic sealing and hot air drying, thereby improving automation and further improving processing efficiency.

[0043] The plastic model 07 is hung on the bottom of the connecting member 04 through a sling 05, and the sling 05 is connected to the plastic model 07 through a hook 06 at the bottom. The connecting member 04 is slidably connected to the conveyor rail 01, and a conveyor belt 02 is slidably connected to the conveyor rail 01. The conveyor belt 02 is provided with a number of equidistantly arranged pushing blocks 03. The conveyor belt 02 moves with the connecting member 04 through the pushing blocks 03.

[0044] Preferably, a baffle 116 is further provided on the rear side of the button 115 , the top of the baffle 116 is slidably connected to the cover of the drying chamber 101 , and an electromagnet 117 is further provided above the baffle 116 , and the electromagnet 117 is connected to an external power supply through the button 115 .

[0045] Therefore, after the button 115 is triggered, the electromagnet 117 is de-energized and no longer attracts the baffle 116. The baffle 116 automatically falls down under the action of gravity to block the plastic model 07. Since the conveyor belt 02 and the push block 03 are both made of rubber and are flexible, the conveyor belt 02 and the push block 03 can automatically bend and deform after the plastic model 07 is blocked, so that the conveyor belt 02 continues to move while the plastic model 07 is left behind.

[0046] The second aspect of the present invention is as follows Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, hot air drying can achieve rapid drying, achieving not only good results but also faster drying speeds. However, hot air drying is best performed in a sealed environment to improve heat utilization, reduce costs, and reduce heat dissipation to prevent excessive temperatures in the processing workshop. Therefore, in this embodiment, the connecting base plate 107 is slidably connected to the inner wall of the base 102 via the sealing strip, the air nozzle 105 is in communication with the inner cavity of the base 102, and the bottom of the base 102 is also provided with an air inlet 110 in communication with the inner cavity of the base 102. The air inlet 110 is also in communication with an external hot air source.

[0047] A solenoid valve 111 is further provided in the air inlet 110 , and the solenoid valve 111 is connected to an external power source via a button 115 .

[0048] Therefore, when the button 115 is triggered, the solenoid valve 111 is energized and opened, allowing external hot air to enter the inner cavity of the base 102. The movable joint 103 and the movable cylinder 104 are both provided with an air supply channel 109, and the bottom of the connecting base 107 is provided with a through hole 108. The air nozzle 105 is connected to the inner cavity of the base 102 through the air supply channel 109 and the through hole 108.

[0049] Therefore, the hot gas will eventually pass through the through hole 108 and the gas delivery channel 109 and finally be ejected through the air nozzle 105.

[0050] In addition, a sealing plate 112 is provided at the bottom of the connecting bottom plate 107. The sealing plate 112 is an L-shaped plate consisting of a vertical part and a horizontal part, wherein the horizontal part of the sealing plate 112 is blocked in the through hole 108, and the vertical part of the sealing plate 112 is slidably connected to the side wall of the connecting bottom plate 107, and a stopper that cooperates with the vertical part of the sealing plate 112 is provided at the highest point of the inner cavity of the base 102, and a tension spring 113 is also connected between the sealing plate 112 and the connecting bottom plate 107.

[0051] Preferably, a sealing gasket 114 is provided at a position of the horizontal portion of the sealing plate 112 corresponding to the through hole 108 , and a groove is provided at the bottom of the connecting bottom plate 107 , and the tension spring 113 is located in the groove.

[0052] Since the through hole 108 is blocked by the sealing plate 112, the air nozzle 105 will not blow air at the beginning. Instead, after the hot air enters the inner cavity of the base 102, the air pressure increases and is able to lift the movable plywood 103 and the movable cylinder 104. After the movable plywood 103 and the movable cylinder 104 are raised to the highest point, the sealing plate 112 will be blocked by the block and then move downward, thereby exposing the through hole 108. At this time, the air nozzle 105 is automatically connected to the base 102, so it can blow out hot air for drying. When the movable plywood 103 and the movable cylinder 104 are raised to the highest point, they will cooperate with the top cover of the drying chamber 101 to form a closed space. Therefore, the air nozzle 105 will only blow air after the closed space is formed. After the movable plywood 103 and the movable cylinder 104 are lowered, they can automatically stop blowing air as soon as possible to minimize the dissipation of heat.

[0053] In summary, the present invention utilizes a conveyor rail 01 for transporting plastic models 07, thereby linking multiple processing stations, such as coating and drying, for the plastic models 07. This allows for a series of processing operations to be performed in an assembly line manner, thereby improving processing efficiency. Furthermore, a button 115 is provided in the drying chamber 101 of the drying station. When the conveyor rail 01 moves the plastic models 07 to a predetermined position, the button 115 is automatically pressed to trigger the automatic sealing and hot air drying operations, thereby enhancing automation and further improving processing efficiency. The drying chamber 101 in the drying station is connected from front to back, so it is convenient for the plastic model 07 to enter and exit. A movable plywood 103 and a movable cylinder 104 are set in the drying chamber 101, which can be raised after the plastic model 07 enters the drying chamber 101. An air nozzle 105 is set on the movable plywood 103 and the movable cylinder 104 to dry the plastic model 07 by spraying hot air, which can dry it quickly. The other four movable plywood 103 are combined into a space enclosed on all sides. Combined with the bottom connecting base 107 and the top cover of the drying chamber 101, a closed space can be formed to reduce heat dissipation. The lifting of the movable plywood 103 and the movable cylinder 104 is achieved by inflating the inner cavity of the base 102. After the hot air enters the inner cavity of the base 102, the air pressure increases, which can lift the movable plywood 103 and the movable cylinder 104. When the movable plywood 103 and the movable cylinder 104 are raised to the highest point, the sealing plate 112 is blocked by the block and moves downward, thereby exposing the through hole 108. At this time, the air nozzle 105 is automatically connected to the base 102, so that hot air can be blown out for drying.

[0054] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention, including the claims, is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0055] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A sealing drying system for plastic models after coating, comprising a conveyor rail (01) for transporting plastic models (07) and a drying station located on the conveyor rail (01), characterized in that: The drying station is provided with: A drying chamber (101) is connected front to back, wherein a movable plywood (103) and a movable cylinder (104) are movably connected in the drying chamber (101), wherein the movable plywood (103) is provided with four pieces, and the four movable plywood (103) form a space closed on all sides, wherein a plurality of air nozzles (105) are provided on the inner surface of the movable plywood (103), and a plurality of air nozzles (105) are also provided on the outer wall of the movable cylinder (104), and a connecting bottom plate (107) is fixedly connected to the bottom of the movable plywood (103) and the movable cylinder (104); A base (102) is provided at the bottom of a drying chamber (101); the connecting base plate (107) is located in a cavity within the base (102); a sealing strip is provided on the outer wall of the connecting base plate (107); the connecting base plate (107) is slidably connected to the inner wall of the base (102) via the sealing strip; the air nozzle (105) is communicated with the inner cavity of the base (102); an air inlet (110) is further provided at the bottom of the base (102) and is communicated with the inner cavity of the base (102); and the air inlet (110) is also communicated with an external hot air source.

2. A sealing and drying system for plastic models after coating according to claim 1, characterized in that: A cover plate is provided at the upper end of the drying bin (101), and the conveying rail (01) is located under the cover plate and passes through the drying bin (101) in a front-to-back direction.

3. The sealing and drying system for plastic models after coating according to claim 1, characterized in that: The upper ends of the front and rear movable plywood (103) are provided with track matching grooves (106) matching with the conveying rail (01).

4. A sealing and drying system for plastic models after coating according to claim 2, characterized in that: The plastic model (07) is hung on the bottom of the connecting piece (04) through a sling (05), and the sling (05) is connected to the plastic model (07) through a hook (06) at the bottom. The connecting piece (04) is slidably connected to the conveying rail (01). A conveying belt (02) is slidably connected to the conveying rail (01). The conveying belt (02) is provided with a plurality of equally spaced pushing blocks (03). The conveying belt (02) moves with the connecting piece (04) through the pushing blocks (03).

5. A sealing and drying system for plastic models after coating according to claim 4, characterized in that: A button (115) is provided at the lower end of the cover of the drying bin (101), the top of the button (115) is slidably connected in the cover of the drying bin (101), and the front and rear edges of the bottom of the button (115) are provided with arc chamfers.

6. A sealing and drying system for plastic models after coating according to claim 5, characterized in that: A baffle (116) is further provided on the rear side of the button (115), the top of the baffle (116) is slidably connected to the inside of the drying chamber (101) cover, and an electromagnet (117) is further provided above the baffle (116), and the electromagnet (117) is connected to an external power supply through the button (115).

7. The sealing and drying system for plastic models after coating according to claim 5, characterized in that: A solenoid valve (111) is also provided in the air inlet (110), and the solenoid valve (111) is connected to an external power source via a button (115).

8. The sealing and drying system for plastic models after coating according to claim 1, characterized in that: The movable joint plate (103) and the movable cylinder (104) are both provided with an air delivery channel (109), and a through hole (108) is provided at the bottom of the connecting bottom plate (107). The air nozzle (105) is connected to the inner cavity of the base (102) through the air delivery channel (109) and the through hole (108).

9. A sealing and drying system for plastic models after coating according to claim 8, characterized in that: A sealing plate (112) is provided at the bottom of the connecting bottom plate (107), and the sealing plate (112) is an L-shaped plate consisting of a vertical portion and a horizontal portion, wherein the horizontal portion of the sealing plate (112) is blocked on the through hole (108), and the vertical portion of the sealing plate (112) is slidably connected to the side wall of the connecting bottom plate (107), and a stopper that cooperates with the vertical portion of the sealing plate (112) is provided at the highest point of the inner cavity of the base (102), and a tension spring (113) is also connected between the sealing plate (112) and the connecting bottom plate (107).

10. A sealing and drying system for plastic models after coating according to claim 9, characterized in that: A sealing gasket (114) is provided at a position of the horizontal portion of the sealing plate (112) corresponding to the through hole (108), and a groove is provided at the bottom of the connecting bottom plate (107), and the tension spring (113) is located in the groove.

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