Automatic dip-coating device for small non-standard sand core

Abstract

The utility model discloses an automatic dip-coating device for a small non-standard sand core, which comprises a coating pool body, air cylinders are vertically arranged on two sides of the coating pool body in the length direction, cylinder barrels of the air cylinders are fixedly connected with the coating pool body, connecting plates are mounted on the end sides of telescopic rods of the air cylinders, and connecting pieces are arranged on the connecting plates and fixedly connected with a horizontally arranged screen. A sand core supporting frame used for placing a sand core is arranged on the screen, and the sand core on the sand core supporting frame can be immersed into the coating in the coating pool body within the stroke range of the air cylinder. The cylinder drives the dip-coating screen to replace manual dip-coating of the sand core, so that the labor intensity of workers can be reduced; multiple sets of sand cores can be dip-coated once, so that the dip-coating efficiency can be improved; and by adjusting the limiting block and the adjusting lead screw, the dip-coating device can be suitable for dip-coating of different types of sand cores and is wide in application range.

Description

Technical Field

[0001] The utility model belongs to the technical field of casting core making, and particularly relates to a small non-standard sand core automatic dipping device. Background Art

[0002] In the core making process, sand core dipping is an important part of the engine cylinder block and cylinder head casting process. The main sand core can be automatically dipped through a matching robot, a universal fixture, and a core assembly platform. There are many types of auxiliary cores. According to different products, they can be divided into airway cores, oilway cores, water jacket cores, camshaft cores, ejector cores, etc., and they have different shapes. Currently, only manual dipping can be used.

[0003] Since there are some uncontrollable factors in manual dipping, such as the control of dipping depth and dipping time, there will be deviations in each person's operation, which will cause quality risks to the products after dipping. In addition, the types of sand core products are different, and the maximum weight is up to 20kg. The dipping workers need to bend over and keep dipping for a certain period of time (3-8s depending on the product). The labor intensity of the workers is too high after each shift, and their physical strength decreases significantly, which will further affect the product quality. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a small non-standard sand core automatic dipping device.

[0005] The technical solution adopted by the utility model is: a small non-standard sand core automatic dipping device, including a paint pool body, cylinders are arranged on both sides of the paint pool body in the length direction, the cylinders are arranged vertically, the cylinder barrels of the cylinders are fixedly connected to the paint pool body, a connecting plate is installed on the end side of the telescopic rod of the cylinder, a connecting piece is arranged on the connecting plate to fix the screen, a sand core support frame for placing sand cores is arranged on the screen, and the sand core on the sand core support frame can be immersed in the paint in the paint pool body within the stroke range of the cylinder.

[0006] Furthermore, guide seats are fixedly connected to both sides of the upper end of the cylinder barrel, and the guide seats are provided with through guide holes and are slidably connected with guide rods. The upper end side of the guide rod is detachably fixedly connected to the end side of the cylinder telescopic rod, and the guide seat is provided with a travel limit block slidably connected to the guide rod at the upper end of the guide hole, and a guide rod mechanical limit block is provided at the lower end of the guide rod.

[0007] Furthermore, the connecting piece is an adjusting screw rod, and the adjusting screw rod is fixed on the connecting plate through a nut.

[0008] Furthermore, a discharge port is provided on the side of the coating pool body near the bottom.

[0009] Furthermore, it comprises a gas valve electric control cabinet, and the gas port of the gas cylinder is connected to the electromagnetic reversing valve in the gas valve electric control cabinet through an air duct.

[0010] Furthermore, a time relay is arranged in the gas valve electric control cabinet, and the time relay is connected to the electromagnetic reversing valve to control the dipping time.

[0011] The utility model has the following beneficial effects:

[0012] 1. The cylinder-driven dip coating screen replaces the manual dip coating sand core, which can reduce the labor intensity of workers;

[0013] 2. Multiple sets of sand cores can be dipped at one time, which can improve the dipping efficiency;

[0014] 3. By adjusting the limit block and the screw rod, it can be applied to different types of sand core dipping and has a wide range of applications;

[0015] 4. The use of time relay to control the cylinder can ensure that the sand core dipping time is consistent with the process requirements and improve the product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a front view of the cylinder of the utility model.

[0018] In the figure: 1—paint pool body; 2—discharging port; 3—cylinder; 4—cylinder fixing seat; 5—connecting plate; 6—screen; 7—gas valve electric control cabinet; 8—paint pool base; 9—adjusting screw rod; 10—air duct; 11—input power line; 12—travel limit block; 13—guide rod; 14—guide rod mechanical limit block; 15—guide seat. DETAILED DESCRIPTION

[0019] In order to better understand the purpose, structure and function of the utility model, a small-sized non-standard sand core automatic dipping device of the utility model is further described in detail below in conjunction with the accompanying drawings.

[0020] like Figure 1 and Figure 2 As shown, a small non-standard sand core automatic dipping device includes a coating pool body 1, a cylinder 3 and a screen 6. The screen 6 is horizontally placed in the coating pool body 1. Cylinders 3 are arranged on both sides of the coating pool body 1 in the length direction. The cylinders 3 are arranged vertically, and the cylinder barrel is fixedly connected to the coating pool body 1. A connecting plate 5 is installed on the end side of the telescopic rod, and a connecting piece is arranged on the connecting plate 5 to fix the screen 6.

[0021] In this embodiment, the coating pool body 1 is fixed on the coating pool base 8, and a discharge port 2 is provided on the side of the coating pool body 1 near the bottom. A cylinder fixing seat 4 is fixed on the side of the coating pool body 1, and the cylinder 3 is fixed on the cylinder fixing seat 4 by bolts. A guide seat 15 is fixedly connected to both sides of the upper end of the cylinder barrel of the cylinder 3. The guide seat 15 is provided with a through guide hole and is slidably connected with a guide rod 13. The upper end side of the guide rod 13 is detachably fixedly connected to the end side of the telescopic rod of the cylinder 3. The guide seat 15 is provided with a travel limit block 12 slidably connected to the guide rod 13 at the upper end of the guide hole, and a guide rod mechanical limit block 14 is provided at the lower end of the guide rod 13. The limit block limits the guide rod 13, and the travel range of the cylinder 3 can be limited. The connecting piece connected to the connecting plate 5 is an adjusting screw rod 9, which is fixed to the connecting plate 5 by a nut. By adjusting the installation position of the adjusting screw rod 9 on the connecting plate 5, the installation height of the screen 6 can be adjusted.

[0022] An air valve electric control cabinet 7 is installed on the outer surface of the paint pool body 1, and the air port of the cylinder 3 is connected to the air valve electric control cabinet 7 through an air duct 10. The air valve electric control cabinet 7 is provided with an electromagnetic reversing valve, a time relay, a contactor, an input power line 11, etc.

[0023] This embodiment adopts the principle of electric pneumatic control, and the cylinder 3 drives the dipping screen 6 to replace the manual dipping of the sand core, which can reduce the labor intensity of workers; a time relay is used to accurately time the sand core instead of human experience to ensure that the dipping time of the sand core in the coating is consistent with the process requirements.

[0024] Before work, the coating pool body 1 is filled with coating, and the ventilation power supply is connected. According to the type of sand cores produced on site, the sand core support frame to be used is selected and placed above the screen 6. According to the process instructions, the time relay is adjusted and set, and the dipping time (i.e. the reversing time of the electromagnetic reversing valve) is set; the appropriate limit block is selected, and the upper and lower nuts of the screw rod 9 are manually adjusted through manual trial operation to determine the dipping depth of the sand core coating. After all preparations are completed, the device can be used.

[0025] The sand core to be dipped is placed on the sand core support frame. The worker presses a button to control the reversal of the electromagnetic reversing valve. The cylinder 3 drives the screen 6 to descend, and the sand core is immersed in the coating. When the dipping time reaches the set time, the electromagnetic reversing valve is reversed, and the cylinder 3 drives the screen 6 and the sand core support frame to rise together. The dipping operation is completed, and the manual coring enters the next process.

[0026] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A small non-standard sand core automatic dipping device, characterized in that: The invention comprises a coating pool body (1), cylinders (3) are arranged on both sides of the coating pool body (1) in the length direction, the cylinders (3) are arranged vertically, the cylinder barrels of the cylinders (3) are fixedly connected to the coating pool body (1), a connecting plate (5) is installed on the end side of the telescopic rod of the cylinder (3), a connecting piece is arranged on the connecting plate (5) to be fixedly connected to a screen (6), a sand core support frame for placing sand cores is arranged on the screen (6), and a sand core on the sand core support frame can be immersed in the coating in the coating pool body (1) within the stroke range of the cylinder (3).

2. The small non-standard sand core automatic dipping device according to claim 1 is characterized in that: Guide seats (15) are fixedly connected to both sides of the upper end of the cylinder barrel, and the guide seats (15) are provided with through guide holes and are slidably connected to guide rods (13). The upper end side of the guide rod (13) is detachably fixedly connected to the end side of the telescopic rod of the cylinder (3). The guide seat (15) is provided with a travel limit block (12) slidably connected to the guide rod (13) at the upper end of the guide hole, and a guide rod mechanical limit block (14) is provided at the lower end of the guide rod (13).

3. The small non-standard sand core automatic dipping device according to claim 1 or 2, characterized in that: The connecting piece is an adjusting screw rod (9), and the adjusting screw rod (9) is fixed to the connecting plate (5) via a nut.

4. The small non-standard sand core automatic dipping device according to claim 1 is characterized in that: A discharge port (2) is provided on the side of the coating pool body (1) close to the bottom end.

5. The small non-standard sand core automatic dipping device according to claim 1 is characterized in that: It comprises an air valve electric control cabinet (7), wherein the air port of the air cylinder (3) is connected to the electromagnetic reversing valve in the air valve electric control cabinet (7) via an air duct (10).

6. The small non-standard sand core automatic dipping device according to claim 5 is characterized in that: A time relay is arranged in the gas valve electric control cabinet (7), and the time relay is connected to the electromagnetic reversing valve to control the dipping time.

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