一种砂芯喷涂工装

Abstract

本实用新型涉及砂芯加工技术领域，提供了一种砂芯喷涂工装，包括底座，底座的上方安装有防护罩，防护罩的内侧安装有喷涂板和加热板；底座的上方设置有多个定位杆，定位杆与底座之间设置有运输单元，定位杆通过运输单元在移动过程中自转；底座的上方分为取放区域、喷涂区域和烘干区域，防护罩预留缺口，取放区域位于防护罩的缺口处，喷涂区域和烘干区域均位于防护罩内且分别于喷涂板和加热板对应；本实用新型通过运输单元和动力单元的配合，实现了砂芯在取放、喷涂和烘干过程中的自动化传输和定位，减少了人工操作，提高了生产效率，同时，定位杆在移动过程中自转，且喷头能够根据砂芯的位置和长度进行精准控制，使得砂芯能够得到均匀喷涂。

Claims

1. A sand core spray tooling comprising a base, characterized by, A protective cover is installed above the base, and a spray plate and a heating plate are installed on the inner side of the protective cover. A plurality of vertically arranged positioning rods are provided above the base, and a transport unit is provided between the positioning rods and the base. The positioning rods rotate during movement via the transport unit. The base is divided into a pick-up and place area, a spraying area, and a drying area. The protective cover has a pre-reserved notch. The pick-up and place area is located at the notch of the protective cover. The spraying area and the drying area are both located inside the protective cover and are precisely corresponding to the spraying plate and the heating plate, respectively.

2. The sand core painting tool according to claim 1, characterized in that: The transport unit includes a gear ring mounted on a base. The base is circular, and the gear ring is coaxially arranged with the base. A concentrically arranged drive gear is arranged inside the gear ring. A rotating shaft is mounted in the middle of the drive gear. The lower end of the rotating shaft passes through the base and is located inside the base. A transmission gear is meshed between the gear ring and the drive gear. A positioning rod is vertically installed in the middle of the transmission gear.

3. The sand core painting tool of claim 2, wherein: The positioning rod has multiple mounting slots circumferentially arranged in a circular array, and positioning claws are provided inside the mounting slots.

4. The sand core painting tool of claim 3, wherein: The positioning claw is L-shaped, and an installation shaft is installed between the positioning claw and the installation groove. The installation shaft is located at the corner of the L-shape of the positioning claw. A torsion spring is provided between the installation shaft and the positioning claw. A power unit for driving the rotating shaft is provided inside the base.

5. The sand core painting fixture of claim 4, wherein: A mounting sleeve is fitted onto the rotating shaft. Multiple baffles are arranged around the mounting sleeve. Each baffle corresponds to a positioning rod. The baffle is located above the drive gear. The baffle is arc-shaped. A base plate is provided at the bottom of the baffle. A groove is formed on the base plate. The positioning rod is located in the groove.

6. The sand core painting fixture of claim 5, wherein: The inner side of the spray plate has multiple nozzles, and the operator can flexibly select the working state of the nozzles by controlling the switch according to the specific size of the sand core and the spraying requirements.

7. The sand core painting fixture of claim 6, wherein: The spray plate and heating plate are embedded in the inner wall of the protective cover, the spray nozzle is flush with the inner wall of the protective cover, and the two ends of the baffle are in contact with the inner wall of the protective cover to form a closed spraying and drying space.

8. The sand core painting fixture of claim 4, wherein: The power unit includes a driver disposed inside the base and a driven gear mounted on a rotating shaft. The drive shaft of the driver is equipped with a driving gear that meshes with the driven gear. The driving gear has two symmetrically arranged arc surfaces.

9. The sand core painting fixture of claim 8, wherein: The diameter of the driving gear is larger than the diameter of the driven gear.

10. The sand core painting fixture of claim 1, wherein: The base has a box on its outer side, and a spray pipe connected to the spray plate is attached to the box.

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