Baffle assembly of evaporation system

Abstract

The utility model discloses a baffle assembly of an evaporation system, which comprises a driving shaft, a baffle and a shaft driving mechanism, the two end parts of the driving shaft are respectively and rotatably arranged on the inner side of a bottom plate of a furnace chamber of evaporation aluminizing equipment through side plates, and the two ends of the baffle are respectively and fixedly connected with the two end parts of the driving shaft through brackets; the shaft driving mechanism comprises an air cylinder, a magnetic strip, a gear and a limiting sleeve piece, the magnetic strip and the gear are meshed with each other, the gear is arranged in the middle of the driving shaft in a sleeving mode, the air cylinder is installed on the outer side of a bottom plate of the furnace cavity, and an output shaft of the air cylinder penetrates into the furnace cavity in a sealed mode to be connected with the rack; the limiting sleeve piece and the rack are installed on the opposite side of the gear in an attached mode. The baffle assembly of the evaporation system has higher reliability.

Description

Technical Field

[0001] The utility model relates to the field of evaporation aluminum plating equipment, in particular to a baffle assembly used for controlling evaporation of an evaporation system in the evaporation aluminum plating equipment. Background Art

[0002] Figure 1 , 2 The schematic diagram of the structure of the evaporation system of the evaporation aluminum plating equipment in the prior art. The evaporation system is usually composed of a support base 1 and an aluminum wire reel 2 installed on the support base 1, a wire feeding mechanism 3, an evaporation boat 4, a baffle assembly 5 and a water tank assembly 6. During operation, the wire feeding mechanism 3 continuously extracts aluminum wire from the aluminum wire reel 2 and feeds it into the evaporation boat 4. The aluminum wire evaporates on the evaporation boat 4 to perform evaporation coating on the workpiece passing over it. In the early stage of operation, the evaporation state of the evaporation boat 4 is unstable, and aluminum splashing and aluminum explosion will occur. The baffle assembly 5 needs to be shielded above the evaporation boat 4, and it will be opened after the boat is lubricated and the evaporation state is stable. Figure 1 , 2 Two different states of the baffle assembly 5 are shown, wherein: Figure 1 In the open state (evaporation state), Figure 2 It is in the closed state (evaporation control state).

[0003] like Figure 1 , 2 As shown, the baffle assembly 5 of the evaporation system in the prior art uses an electric cylinder 51 as a power component, and two electric cylinders 51 push the baffle 52 from the left and right sides to move on two guide rails 53 mounted on the support base 1, thereby realizing state switching. This baffle assembly 5 has the following disadvantages:

[0004] The power component electric cylinder 51 is installed inside the furnace chamber of the coating equipment. The high temperature and harsh environment can easily cause device failure. In addition, it is difficult for the two electric cylinders 51 to be completely synchronized, so they tilt and cause the baffle 52 to stop on the guide rail 53 (at least one guide rail 53 is a channel steel structure, and the speeds of the two sides of the baffle 52 are inconsistent, causing the sliding structure on the baffle 52, such as the sliding wheel, to hit the guide rail 53 with a channel steel structure and get stuck).

[0005] In summary, the baffle assembly 5 of the evaporation system in the prior art has a high failure rate and insufficient reliability. Utility Model Content

[0006] The purpose of the utility model is to provide an evaporation system baffle assembly with high reliability.

[0007] The purpose of the utility model is achieved through the following technical solutions: an evaporation system baffle assembly, including a driving shaft whose two ends are rotatably mounted on the inner side of the bottom plate of the furnace cavity of the evaporation aluminum coating equipment through side plates, and also including a baffle and a shaft driving mechanism, the two ends of the baffle are respectively fixedly connected to the two ends of the driving shaft through brackets, the shaft driving mechanism includes a cylinder, meshing magnetic strips and gears, and a limit kit, the gear is sleeved on the middle part of the driving shaft, the cylinder is mounted on the outer side of the bottom plate of the furnace cavity, and its output shaft seal penetrates into the furnace cavity and is connected to the rack, and the limit kit is installed on the opposite side of the gear in a close fit with the rack.

[0008] The utility model sets the power component outside the furnace, and only its output shaft extends into the furnace body, thereby avoiding the adverse effects of the high temperature and harsh environment in the furnace on the power component, and reducing the failure of the power component. In addition, the utility model only uses one power component, and drives the baffle to follow the rotation of the drive shaft through the gear rack matching structure to realize the opening and closing state switching of the baffle, and at the same time, the rack and the gear can maintain stable meshing through the limit kit. The entire shaft drive mechanism has high control accuracy and reliable transmission. Compared with the existing technology, it can greatly reduce the failure rate of the baffle assembly of the evaporation system and improve reliability.

[0009] Preferably, the limiting kit comprises two seats which are arranged on both sides of the gear and installed on the inner side of the furnace chamber bottom plate, and the drive shaft is rotatably installed on and passes through them. The limiting kit also comprises a rotatable I-shaped roller, the back side of the rack is in contact with the rolling surface of the roller and is limited between the I-shaped surfaces of the roller, and the two ends of the roller are respectively connected to the two seats through connecting plates.

[0010] The limit kit of the utility model better supports the drive shaft through two upright seats to reduce the requirements for the drive shaft. In addition, the utility model not only limits the front and rear positions of the rack, but also limits the left and right positions of the rack through the I-shaped roller, so that the rack and the gear can better maintain alignment during the transmission process, which is conducive to further enhancing the reliability of the utility model.

[0011] Preferably, the bracket is V-shaped, the bottom end of the V is connected to the driving shaft, and the two ends of the V are connected to the two sides of the baffle respectively.

[0012] Beneficial effects:

[0013] The utility model sets the power component outside the furnace body, reducing the impact of the high temperature and harsh environment inside the furnace body on the power component. In addition, the utility model adopts a power component and transmits the power through the cooperation of a gear rack, and adopts a limit kit to make the rack and the gear mesh more stably. Compared with the existing technology, it can greatly reduce the failure rate of the baffle assembly of the evaporation system and improve its reliability. In addition, the design of the limit kit of the utility model can not only reduce the requirements for the drive shaft, but also limit the rack front and back and left and right at the same time through the I-shaped roller, so that during the transmission process, the rack and the gear can better maintain alignment, which is conducive to further enhancing the reliability of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 , 2 It is a structural schematic diagram of an evaporation system in an evaporation aluminum plating device in the prior art;

[0015] Figure 3 This is a structural schematic diagram of an evaporation system baffle assembly of a preferred embodiment of the utility model;

[0016] Figure 4 , 5 for Figure 3 Reference diagram for the usage status of the baffle assembly of the evaporation system. DETAILED DESCRIPTION

[0017] This embodiment aims to provide a baffle assembly with higher reliability for controlling evaporation of the evaporation system in an evaporation aluminum coating device. Figure 3 As shown, the baffle assembly of this embodiment includes a driving shaft 8 whose two ends are rotatably mounted on the inner side of the furnace chamber bottom plate (not shown) of the evaporation aluminum coating equipment through the side plates 7, and also includes a baffle 9 and a shaft driving mechanism. The two ends of the baffle 9 are respectively fixedly connected to the end of the driving shaft 8 passing through the side plate 7 through the bracket 10. The shaft driving mechanism specifically includes a cylinder 111, meshing magnetic strips 112 and gears 113, and a limit kit. The gear 113 is sleeved on the middle part of the driving shaft 8, and the cylinder 111 is mounted on the outer side of the furnace chamber bottom plate through the seat plate 114. The output shaft of the cylinder 111 passes through the center hole of the seat plate 114 through a skeleton oil seal and penetrates into the furnace chamber to be connected with the rack 112. A sealing ring mounting position 1141 is provided on the periphery of the center hole of the seat plate 114 so that the seat plate 114 and the furnace body bottom plate can be sealed and connected. The limit kit and the rack 112 are installed on the opposite side of the gear 113 in a close fit.

[0018] The specific structure of the limiting kit of this embodiment is as follows: it includes two upright seats 121 which are arranged on both sides of the gear 113 and installed on the inner side of the furnace chamber bottom plate, and the driving shaft 8 is rotatably installed on them and passes through them. The limiting kit also includes a rotatable I-shaped roller 122, and the back side of the rack 112 is in contact with the rolling surface of the roller 122 and is limited between the I-shaped surfaces of the roller 122. The two ends of the roller 122 are respectively connected to the two upright seats 121 through connecting plates 123.

[0019] In this embodiment, the cylinder 111 of the power component is arranged outside the furnace, and only its output shaft extends into the furnace body, thereby avoiding the adverse effects of the high temperature and harsh environment in the furnace on the power component and reducing the occurrence of power component failure. In addition, in this embodiment, only one power component is used, and the transmission is through the rack and pinion. At the same time, the rack and the pinion are kept in stable meshing through the limit kit. The entire shaft drive mechanism has high control accuracy and reliable transmission. Compared with the prior art, the failure rate of the baffle assembly of the evaporation system can be greatly reduced and its reliability can be improved. In addition, in this embodiment, the limit kit better supports the drive shaft 8 through the two seats 121, which can reduce the requirements for the drive shaft 8. In addition, the limit kit not only limits the rack 112 front and back through the I-shaped roller 122, but also limits it left and right, so that during the transmission process, the rack 112 and the gear 113 can be better aligned, which is conducive to further enhancing the reliability of the baffle assembly.

[0020] As a preferred solution, Figure 3 As shown, the bracket 10 of this embodiment is V-shaped, the bottom end of the V is connected to the end of the drive shaft 8, and the two ends of the V are respectively connected to the two sides of the baffle 9 through connecting rods 91. The triangular connection structure is more stable, and the V-shaped bracket can reduce weight.

[0021] The installation method and use process of the baffle assembly of this embodiment are as follows: Figure 4 , 5 shown. Figure 4 , 5 The overall structure of the evaporation system is shown, wherein 13 is a support base of the evaporation system, and 14, 15, 16, 17, and 18 are respectively an aluminum wire reel, a wire feeding mechanism, an evaporation boat, a baffle assembly, and a water tank assembly installed on the support base 13. Figure 4 , 5 As shown (the rack and cylinder structure of the baffle assembly are not shown), the drive shaft 8 is installed below the evaporation boat 16 along the parallel direction of the evaporation boat 16. Figure 3 The cylinder 111 in the Figure 4 The driving shaft 8 drives the V-shaped bracket 10 to rotate to a vertical position, and the baffle 9 just covers the evaporation boat 16 of the evaporation system. When the evaporation state of the evaporation boat 16 is unstable, the evaporation is controlled. After the evaporation boat 16 is lubricated and the evaporation state is stable, Figure 3 The cylinder 111 in the middle drives the V-shaped bracket 10 to deflect backwards through the rack 112 and the gear 113, and the baffle 9 moves to the rear of the evaporation boat 16, entering the normal evaporation state, such as Figure 5 shown.

[0022] exist Figure 4 , 5 In the evaporation system shown, the baffle 9 weighs 54 kg. Figure 1 , 2 In the evaporation system shown, the failure rate of the baffle assembly is greatly reduced and the reliability is greatly improved.

Claims

1. An evaporation system baffle assembly, characterized in that: It includes a driving shaft whose two ends are rotatably mounted on the inner side of the bottom plate of the furnace chamber of the evaporation aluminum coating equipment through side plates, and also includes a baffle and a shaft driving mechanism. The two ends of the baffle are fixedly connected to the two ends of the driving shaft through brackets. The shaft driving mechanism includes a cylinder, meshing racks and gears, and a limit kit. The gear is sleeved on the middle part of the driving shaft, and the cylinder is mounted on the outer side of the bottom plate of the furnace chamber. Its output shaft seal penetrates into the furnace chamber and is connected to the rack. The limit kit is installed on the opposite side of the gear in a close fit with the rack.

2. The baffle assembly according to claim 1, characterized in that: The limiting kit includes two stands which are arranged on both sides of the gear and installed on the inner side of the furnace chamber bottom plate. The drive shaft is rotatably installed on them and passes through them. The limiting kit also includes a rotatable I-shaped roller. The back side of the rack is in contact with the rolling surface of the roller and is limited between the I-shaped surfaces of the roller. The two ends of the roller are respectively connected to the two stands through connecting plates.

3. The baffle assembly according to claim 2, characterized in that: The bracket is in a V shape, the bottom end of the V is connected to the driving shaft, and the two ends of the V are respectively connected to the two sides of the baffle.

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