Reciprocating type single furnace body MDF powder spraying system and processing method thereof

Abstract

The invention discloses a reciprocating type single-furnace-body MDF powder spraying system and a machining method thereof, and belongs to the technical field of plate machining. The reciprocating type single-furnace-body MDF powder spraying system comprises a feeding and discharging chamber, a heating furnace, a powder spraying chamber, an electric control box and a reciprocating type conveying structure installed at the top end of the electric control box, and the feeding and discharging chamber, the heating furnace, the powder spraying chamber and the electric control box are sequentially arranged; precise reciprocating type movement of plates is achieved through the sliding block carrying table driven by the linear guide rail and the servo motor, compared with a traditional chain circulation conveying mode, the conveying efficiency of the plates is improved, time waste in the conveying process is reduced, the single furnace body is adopted to be matched with the reciprocating type machining process, a traditional multi-furnace body system is replaced, and the production cost is reduced. The equipment cost and the occupied area are reduced, the system structure is simplified, equipment installation, maintenance and management are facilitated, the heating time and temperature of plates in the heating furnace are optimally set, flexible adjustment is conducted according to different machining requirements, it is guaranteed that the plates can be heated optimally, the powder spraying machining quality is improved, and the rejection rate is reduced.

Description

Technical Field

[0001] A reciprocating single furnace body MDF powder spraying system and its processing method. The present invention belongs to the technical field of sheet processing, and specifically relates to the technical field of powder spraying during sheet processing. Background Art

[0002] During the powder spraying process of MDF sheets, traditional processing systems have problems such as complex structures, low sheet transmission efficiency, and high processing energy consumption. Existing powder spraying systems often require multiple furnace bodies to work together, resulting in large equipment floor space and high costs; the equipment generally uses a chain circulation transmission structure, which requires reserved space for chain rotation in the equipment layout, resulting in large floor space; at the same time, in heating and other links, the heating time and temperature control of the sheets are not flexible enough, and cannot be optimized and adjusted according to different processing requirements, resulting in energy waste, and more furnace bodies need to be set up for preheating and drying operations of the sheets, thus making the equipment investment relatively high. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects, and provide a reciprocating single furnace body MDF powder spraying system and its processing method. By setting a unique reciprocating conveying structure and processing process, high-efficiency powder spraying processing of MDF sheets under a single furnace body is realized, the processing quality and production efficiency are improved, and the equipment cost and energy consumption are reduced.

[0004] To achieve the above object, the present invention provides the following technical solutions: A reciprocating single furnace body MDF powder spraying system, including a loading and unloading chamber, a heating furnace, a powder spraying chamber, and an electric control box arranged in sequence. A reciprocating conveying structure for reciprocating movement of the sheet to be processed is installed at the inner top of the loading and unloading chamber, the heating furnace, and the powder spraying chamber.

[0005] As a preferred technical solution of the present invention, the reciprocating conveying structure is composed of a linear guide rail and a slider carrier driven by a servo motor. Hooks for hanging the sheets are installed at the bottom end of the slider carrier, and the linear guide rail is installed at the inner top of the loading and unloading chamber, the heating furnace, and the powder spraying chamber.

[0006] As a preferred technical solution of the present invention, the moving direction of the sheet to be processed during processing is the loading and unloading chamber, the heating furnace, the powder spraying chamber, the heating furnace, and the loading and unloading chamber.

[0007] As a preferred technical solution of the present invention, the time for the sheet to pass through the heating furnace for the first time is set to be less than the time for the sheet to pass through the heating furnace for the second time.

[0008] As a preferred technical solution of the present invention, the time for the sheet to pass through the heating furnace is set to be inversely proportional to the temperature inside the heating furnace.

[0009] A processing method for a reciprocating single furnace body MDF powder spraying system is as follows: S1 Equipment preparation: Prepare a system including a loading and unloading chamber, a heating furnace, a powder spraying chamber, and an electric control box arranged in sequence. Install a reciprocating conveying structure composed of a slider carrier driven by a linear guide rail and a servo motor and a bottom hook at the inner top of the loading and unloading chamber, the heating furnace, and the powder spraying chamber.

[0010] S2 Loading operation: In the loading and unloading chamber, hang the plate to be processed on the slider carrier of the reciprocating conveying structure through a hook.

[0011] S3 Preheating stage: Start the system through the electric control box. The servo motor drives the slider carrier to move along the linear guide rail, and send the plate into the heating furnace for the first heating. The first heating is preheating to make the plate reach a suitable temperature for powder spraying. The heating time is short, and the heating time and the internal temperature of the heating furnace are inversely proportional.

[0012] S4 Powder spraying operation: After the first heating is completed, the slider carrier continues to move and sends the plate into the powder spraying chamber to complete the powder spraying operation.

[0013] S4 Curing stage: After powder spraying is completed, the slider carrier sends the plate back to the heating furnace for the second heating. The second heating is to make the powder spraying better adhere to the surface of the plate. The heating time is long, and the internal temperature of the heating furnace is also adjusted according to the inverse relationship between the time the plate passes through and the temperature.

[0014] S6 Unloading operation: After the second heating is completed, the slider carrier sends the plate back to the loading and unloading chamber. The operator removes the processed plate from the hook to complete the entire processing process. During the processing, the electric control box monitors and controls the operating status of each part of the equipment in real time. Compared with the prior art, the beneficial effects of the present invention are as follows: Efficient transmission: The setting of the reciprocating conveying structure realizes the precise reciprocating movement of the plate through the linear guide rail and the slider carrier driven by the servo motor. Compared with the traditional chain cycle conveying method, it greatly improves the transmission efficiency of the plate and reduces the time waste during the transmission process. Single furnace body design: Adopt a single furnace body to cooperate with the reciprocating processing flow, replacing the traditional multi-furnace body system, reducing the equipment cost and floor area, simplifying the system structure, and facilitating the installation, maintenance, and management of the equipment. Precise processing control: Optimize the heating time and temperature of the plate in the heating furnace, and flexibly adjust according to different processing requirements to ensure that the plate can obtain the best heating effect, improve the powder spraying processing quality, and reduce the waste rate. Energy saving and consumption reduction: By reasonably controlling the relationship between the heating time and temperature of the plate in the heating furnace, it avoids the situation of overheating or underheating, effectively reduces energy consumption, and meets the requirements of green production. Brief Description of the Drawings

[0015] Figure 1 is the floor plan of the present invention; 1 - Loading and unloading chamber; 2 - Heating furnace; 3 - Powder spraying chamber; 4 - Electric control box; 5 - Reciprocating conveying structure. Detailed Embodiments

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0017] Please refer to Figure 1 , the present invention provides a technical solution: A reciprocating single-furnace MDF powder spraying system includes a loading and unloading chamber 1, a heating furnace 2, a powder spraying chamber 3, and an electric control box 4 arranged in sequence. A reciprocating conveying structure 5 for reciprocatingly moving the plate to be processed is installed at the inner top of the loading and unloading chamber 1, the heating furnace 2, and the powder spraying chamber 3. Among them, the loading and unloading chamber 1 is used for loading and unloading of the plate; the heating furnace 2 is used for heating the plate to meet the temperature requirements of powder spraying processing; the powder spraying chamber 3 is used to complete the powder spraying operation on the plate; the electric control box 4 is used to control the operation of the entire system.

[0018] The reciprocating conveying structure 5 is composed of a linear guide rail and a slider carrier driven by a servo motor. Hooks for hanging the plate are installed at the bottom end of the slider carrier. The linear guide rail is installed at the inner top of the loading and unloading chamber 1, the heating furnace 2, and the powder spraying chamber 3. The linear guide rail installed at the inner top of the loading and unloading chamber 1, the heating furnace 2, and the powder spraying chamber 3 provides a stable moving track for the slider carrier. The slider carrier is driven by a servo motor and can achieve precise reciprocating movement. Hooks for hanging the plate are installed at the bottom end of the slider carrier. The plate to be processed is hung on the slider carrier through the hooks to realize the stable conveying of the plate in the system. Thus, it replaces the traditional chain conveying structure, reduces the floor area by 30% - 50%, and reduces the comprehensive power consumption by 40% - 60%, thereby greatly reducing the input cost.

[0019] The moving direction of the plate to be processed during processing is the loading and unloading chamber 1, the heating furnace 2, the powder spraying chamber 3, the heating furnace 2, the loading and unloading chamber 1. The plate is first loaded in the loading and unloading chamber 1, then sent into the heating furnace 2 for preheating through the reciprocating conveying structure 5, then enters the powder spraying chamber 3 for powder spraying operation, and then enters the heating furnace 2 again for curing after powder spraying, and finally returns to the loading and unloading chamber 1 to complete unloading.

[0020] The time for the sheet material to pass through the heating furnace 2 for the first time is set to be less than the time for the second pass. The first heating is mainly to preheat the sheet material to a temperature suitable for powder spraying, with a shorter time. The second heating is to make the powder coating adhere better to the surface of the sheet material and requires a longer time to ensure sufficient curing.

[0021] The time for the sheet material to pass through the heating furnace 2 is set in inverse proportion to the temperature inside the heating furnace 2. That is, when the temperature inside the heating furnace 2 is relatively high, the time for the sheet material to pass through the heating furnace 2 can be correspondingly shortened; when the temperature inside the heating furnace 2 is relatively low, the time for the sheet material to pass through the heating furnace 2 needs to be extended to ensure that the sheet material can achieve the required heating effect.

[0022] In actual use, the operator first hangs the sheet material to be processed on the slider platform of the reciprocating conveying structure 5 through a hook in the loading and unloading chamber 1. Then, the system is started through the electric control box 4, and the servo motor drives the slider platform to move along the linear guide rail to send the sheet material into the heating furnace 2. At this time, according to the pre-set program, the temperature inside the heating furnace 2 is adjusted to an appropriate value, and the sheet material is heated for the first time in the heating furnace 2. The heating time is carried out according to the set time. When the temperature inside the heating furnace 2 is set to 150 degrees, the time for the sheet material to pass through the 3-meter heating furnace 2 is 1.5 minutes. During the return curing process, the temperature is also 150 degrees, and the time for the sheet material to pass through the 3-meter heating furnace 2 is 4 minutes. After the first heating is completed, the slider platform continues to move to send the sheet material into the powder spraying chamber 3, and the powder spraying operation is completed in the powder spraying chamber 3. After the powder spraying is finished, the slider platform sends the sheet material back to the heating furnace 2 for the second heating. Since the second heating needs to fully cure the powder coating, the heating time is carried out according to the set longer time. At the same time, the temperature inside the heating furnace 2 is adjusted accordingly according to the inverse relationship between the time the sheet material passes through and the temperature. After the second heating is completed, the slider platform sends the sheet material back to the loading and unloading chamber 1, and the operator removes the processed sheet material from the hook to complete the entire processing process. During the entire processing process, the electric control box 4 monitors and controls the operating status of each part of the equipment in real time to ensure the stable and efficient operation of the system.

[0023] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reciprocating single furnace body MDF powder spraying system, comprising a loading and unloading chamber (1), a heating furnace (2), a powder spraying chamber (3) and an electric control box (4) arranged in sequence, characterized in that: A reciprocating conveying structure (5) for reciprocating the plate to be processed is installed at the inner top of the loading and unloading chamber (1), the heating furnace (2) and the powder spraying chamber (3).

2. The reciprocating single furnace body MDF powder spraying system according to claim 1, characterized in that: The reciprocating conveying structure (5) is composed of a linear guide rail and a slider table driven by a servo motor. Hooks for hanging the plate are installed at the bottom end of the slider table, and the linear guide rail is installed at the inner top of the loading and unloading chamber (1), the heating furnace (2) and the powder spraying chamber (3).

3. A reciprocating single furnace body MDF powder spraying system according to claim 1, characterized in that: The moving direction of the plate to be processed during processing is the loading and unloading chamber (1), the heating furnace (2), the powder spraying chamber (3), the heating furnace (2), the loading and unloading chamber (1).

4. A reciprocating single furnace body MDF powder spraying system according to claim 2, characterized in that: The time for the plate to pass through the heating furnace (2) for the first time is set to be less than the time for the plate to pass through the heating furnace (2) for the second time.

5. A reciprocating single-furnace MDF powder spraying system according to claim 1, characterized in that: The time for the plate to pass through the heating furnace (2) is set to be inversely proportional to the temperature inside the heating furnace (2).

6. A processing method of a reciprocating single-furnace MDF powder spraying system is as follows: S1 Equipment preparation: Prepare a system including a loading and unloading chamber (1), a heating furnace (2), a powder spraying chamber (3) and an electric control box (4) arranged in sequence. Install a reciprocating conveying structure composed of a linear guide rail, a slider table driven by a servo motor and hooks at the bottom end at the inner top of the loading and unloading chamber (1), the heating furnace (2) and the powder spraying chamber (3). S2 Loading operation: In the loading and unloading chamber (1), hang the plate to be processed on the slider table of the reciprocating conveying structure through a hook. S3 Preheating stage: Start the system through the electric control box (4), the servo motor drives the slider table to move along the linear guide rail, and send the plate into the heating furnace (2) for the first heating. The first heating is preheating to make the plate reach a suitable temperature for powder spraying. The heating time is short, and the heating time and the temperature inside the heating furnace are inversely proportional. S4 Powder spraying operation: After the first heating is completed, the slider table continues to move and sends the plate into the powder spraying chamber (3) to complete the powder spraying operation. S5 Curing stage: After powder spraying, the slider table sends the plate back into the heating furnace (2) for the second heating. The second heating is to make the powder spray better adhere to the surface of the plate. The heating time is long, and the temperature inside the heating furnace is also adjusted according to the inverse relationship between the time the plate passes through and the temperature. S6 Unloading operation: After the second heating is completed, the slider table sends the plate back to the loading and unloading chamber (1), and the operator removes the processed plate from the hook to complete the entire processing process. During the processing, the electric control box (4) monitors and controls the operating status of each part of the equipment in real time.

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