Furnace door structure of precision casting furnace

Abstract

The utility model discloses a furnace door structure of a precision casting furnace, which comprises a door frame and a furnace door, a hinge is mounted on the furnace door, a linear slide rail is mounted on the door frame, a slider is slidably arranged on the linear slide rail, one end of the hinge far away from the furnace door is mounted on the slider, a translation cylinder mounting seat is mounted on the door frame, and a translation cylinder is mounted on the translation cylinder mounting seat. A pull plate is connected to a piston rod of the translation air cylinder and installed on the sliding block. The opening and closing of the furnace body are realized by translating the furnace door, and the occupied space is small in the opening and closing process.

Description

Technical Field

[0001] This utility model relates to the field of forging furnace technology, and more specifically, to a furnace door structure for a precision casting furnace. Background Technology

[0002] Currently, in the field of domestically produced vacuum precision casting furnaces, the furnace door structure is designed using a rocker arm type, manually operated, similar to the door opening mechanism in a house. This structure has the following drawbacks: the interior of a vacuum precision casting furnace is a high-temperature working environment, and the inside of the furnace door also experiences high temperatures. If the furnace door is opened manually, the operator is at risk of burns; the rocker arm type rotating door opening method occupies space in front of the furnace door, resulting in a large footprint for the equipment. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a furnace door structure for a precision casting furnace.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model discloses a furnace door structure for a precision casting furnace, including a door frame and a furnace door. A hinge is installed on the furnace door, a linear slide rail is installed on the door frame, and a slider is slidably mounted on the linear slide rail. The end of the hinge away from the furnace door is mounted on the slider. A translation cylinder mounting seat is installed on the door frame, and a translation cylinder is mounted on the translation cylinder mounting seat. A pull plate is connected to the piston rod of the translation cylinder, and the pull plate is mounted on the slider.

[0006] Furthermore, furnace door tensioning seats are provided on both the left and right sides of the furnace door, and grooves are provided on the inner side of the furnace door tensioning seats.

[0007] Furthermore, it also includes two tensioning cylinders installed on the furnace body. The positions of the two tensioning cylinders correspond to the tensioning seats of the furnace doors on both sides. The piston rod end of the tensioning cylinder is connected to a tensioning block, which can enter the groove.

[0008] Furthermore, guide rails are installed on the gantry frame, located below the furnace door.

[0009] Furthermore, the guide rail includes a horizontally arranged support plate located directly below the furnace door, with a limit plate connected to the front side of the support plate.

[0010] Furthermore, the gantry includes vertically arranged columns, with a crossbar connected to the upper end of the columns, a linear slide rail installed on the front side of the crossbar, and a guide rail installed on the lower front side of the columns.

[0011] The advantages of this invention are: the use of a translation cylinder to drive the furnace door to move and open / close the furnace body reduces the space occupied compared to the rocker arm type furnace door; and it eliminates the need for operators to approach the furnace door to operate, thus ensuring high personnel safety. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the furnace door structure of the precision casting furnace in this embodiment;

[0013] Figure 2 This is a front view of the furnace door structure of the precision casting furnace in this embodiment;

[0014] Figure 3 For this Figure 2 AA section view;

[0015] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0016] Figure 5 This is a left view of the furnace door structure of the precision casting furnace in this embodiment.

[0017] Reference numerals: 1. Gantry; 2. Column; 3. Crossbar; 4. Guide rail; 5. Support plate; 6. Limiting plate; 7. Translation cylinder mounting seat; 8. Translation cylinder; 9. Linear slide rail; 10. Slider; 11. Hinge; 12. Pull plate; 13. Furnace door tensioning seat; 14. Furnace door; 15. Right tensioning cylinder mounting seat; 16. Tensioning cylinder; 17. Left tensioning cylinder mounting seat; 18. Groove; 19. Tensioning block; 20. Roller; 21. Furnace body flange. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figures 1-5As shown, a furnace door structure for a precision casting furnace includes a frame 1 and a furnace door 14. The frame 1 includes a vertically arranged column 2, with a crossbar 3 connected to the upper end of the column 2. A linear slide rail 9 is bolted to the front side of the crossbar 3, and two sliders 10 are slidably mounted on the linear slide rail 9. The furnace door 14 is located in front of the furnace body flange 21. Two hinges 11 are provided on the upper part of the furnace door 14. One end of the hinge 11 is welded to the upper edge of the furnace door 14, and the other end is bolted to the slider 10. A translation cylinder mounting seat 7 is bolted to the front side of the crossbar 3. A translation cylinder 8 is mounted on the translation cylinder mounting seat 7. A pull plate 12 is connected to the piston rod end of the translation cylinder 8, and the pull plate 12 is bolted to one of the sliders 10.

[0020] The translation cylinder 8 controls the extension and retraction of its piston rod, which in turn drives the slider 10 to slide along the linear slide rail 9 via the pull plate 12. This causes the furnace door 14 to translate, allowing it to reach or leave the front side of the furnace body flange 21, thus opening and closing the furnace. This translational method of opening and closing the furnace door does not require as much space in front of the door as a rocker arm rotary door opening method.

[0021] Furnace door tensioning seats 13 are provided on both the left and right sides of the furnace door 14. A groove 18 is formed inside the furnace door tensioning seat 13, connecting the left, right, and rear end faces of the seat. The groove 18 has a T-shaped cross-section. A left tensioning cylinder mounting seat 17 and a right tensioning cylinder mounting seat 15 are fixedly installed on the left and right sides of the furnace body. A tensioning cylinder 16 is installed on both the left and right tensioning cylinder mounting seats 17 and 15, and a tensioning block 19 is connected to the piston rod end of the tensioning cylinder 16. A roller 20 is installed in the groove 18 via a pin, and the roller 20 is located in an inward position.

[0022] As the furnace door 14 moves towards the furnace body flange 21, the two tensioning blocks 19 can enter the two furnace door tensioning seats 13 through the grooves 18 respectively. The tensioning blocks 19 are located in front of the roller 20. The tensioning cylinder 16 controls its piston rod to retract. When the tensioning blocks 19 act on the furnace door tensioning seats 13 to pull the furnace door 14 closer to the furnace body flange 21, the hinge 11 will deflect at a certain angle. Due to the deflection of the hinge 11, the horizontal force of the tensioning blocks 19 generates a vertical component force. Through the rolling friction between the roller 20 and the tensioning blocks 19, the furnace door 14 is lifted upward, thereby tightening and sealing the furnace door 14.

[0023] When the door is opened, the tensioning cylinder 16 controls the piston rod to extend, pushing the furnace door 14 from the tensioned state to the released state. At this time, the two hinges 11 return to the vertical state. After the piston rod of the tensioning cylinder 16 extends to its full position, the translation cylinder 8 controls its piston rod to retract, which drives the furnace door 14 to move to the right through the pull plate 12, thus opening the door. When the furnace door 14 moves, the tensioning block 19 can disengage from the furnace door tensioning seat 13 through the groove 18.

[0024] It also includes a guide rail 4, which includes a horizontally arranged support plate 5 located directly below the furnace door 14. A limit plate 6 is connected to the front side of the support plate 5. The support plate 5 and the limit plate 6 limit the positions of the lower end face and the front end face of the furnace door 14, respectively.

[0025] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A furnace door structure for a precision casting furnace, characterized in that, The assembly includes a gantry (1) and a furnace door (14). A hinge (11) is installed on the furnace door (14). A linear slide rail (9) is installed on the gantry (1). A slider (10) is slidably mounted on the linear slide rail (9). One end of the hinge (11) away from the furnace door (14) is mounted on the slider (10). A translation cylinder mounting seat (7) is installed on the gantry (1). A translation cylinder (8) is installed on the translation cylinder mounting seat (7). A pull plate (12) is connected to the piston rod of the translation cylinder (8). The pull plate (12) is mounted on the slider (10).

2. The furnace door structure of a precision casting furnace according to claim 1, characterized in that, Furnace door tensioning seats (13) are provided on both the left and right sides of the furnace door (14), and grooves (18) are provided on the inner side of the furnace door tensioning seats (13).

3. The furnace door structure of a precision casting furnace according to claim 2, characterized in that, It also includes two tensioning cylinders (16) installed on the furnace body. The positions of the two tensioning cylinders (16) correspond to the furnace door tensioning seats (13) on both sides. The piston rod end of the tensioning cylinder (16) is connected to a tensioning block (19), which can enter the groove (18).

4. The furnace door structure of a precision casting furnace according to claim 1, characterized in that, The gantry (1) is equipped with a guide rail (4), which is located below the furnace door (14).

5. The furnace door structure of a precision casting furnace according to claim 4, characterized in that, The guide rail (4) includes a horizontally arranged support plate (5), which is located directly below the furnace door (14), and a limit plate (6) is connected to the front side of the support plate (5).

6. The furnace door structure of a precision casting furnace according to claim 1, characterized in that, The gantry (1) includes a vertically arranged column (2), with a crossbar (3) connected to the upper end of the column (2), a linear slide rail (9) installed on the front side of the crossbar (3), and a guide rail (4) installed on the lower front side of the column (2).

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