A wax mold dipping device for preventing surface cracks of a cast steel mold

Abstract

The utility model relates to a wax mould slurry dipping device for preventing cast steel shell surface crack, including the rectangular slurry dipping pool, the slurry dipping pool is inserted and is fixed with the inner lining seat, the inner lining seat includes the horizontal bottom plate, the both sides of bottom plate are shaped with the oblique side baffle, the slurry dipping pool is surrounded and is shaped with the slurry dipping chamber of the isosceles trapezoid shape of inner lining seat, the slurry dipping chamber is inserted with two groups of front, back distribution and isosceles trapezoidal side baffle, and the side baffle is in abutment on the upper surface of inner lining seat, the both sides of side baffle are respectively fixed with the longitudinal guide column, and the guide column is inserted respectively in the pool wall of slurry dipping pool front, back side, the upper part of slurry dipping pool front side is inserted with the longitudinal slurry inlet lead screw, and the slurry inlet lead screw is shaped with the slurry inlet hole of slurry dipping chamber intercommunication in, the adjustable baffle is equipped in this slurry dipping device, and the slurry dipping capacity in slurry dipping pool can be adjusted through moving baffle, and simultaneously is equipped with the slurry stirring structure and the supplementary structure, and the slurry in slurry dipping pool is convenient for the supplementary and stirring of slurry.

Description

Technical fields:

[0001] This utility model relates to the technical field of casting production equipment for cast steel parts, and more specifically to a wax mold coating device for preventing surface cracks in cast steel mold shells. Background technology:

[0002] In the entire process of investment casting, shell making is one of the main production steps. The shell is generally prepared layer by layer through slurry application and sand application. The preparation of the shell usually requires several or even more than a dozen layers. Therefore, the shell making process is relatively long. After the shell is prepared, the wax material inside the shell needs to be removed by dewaxing to obtain a shell with cavities for casting. Using a shell with multiple slurry application and sand application can reduce the generation of surface cracks in the cast steel shell. Currently, slurry application and sand application are carried out on a circular conveyor production line. The conveyor production line is equipped with a circular conveyor chain with hangers that can hang the wax pattern tree. The hangers can carry the wax pattern tree down into the slurry application tank for slurry application treatment.

[0003] Currently, the slurry dipping tank is generally fixed, and wax model trees of different sizes are all dipped in the same slurry dipping tank. Therefore, some people have proposed that a slurry dipping tank with adjustable slurry capacity according to the size of the wax model tree is needed, so as to avoid slurry waste. When designing an adjustable slurry dipping tank, the stirring and replenishment of slurry in the tank should be considered. Utility Model Content:

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a wax mold slurry application device for preventing surface cracks in cast steel mold shells. The slurry application device is equipped with an adjustable baffle, which can be moved to adjust the slurry capacity in the slurry application tank. It is also equipped with a slurry stirring structure and a replenishment structure to facilitate the replenishment and stirring of slurry in the slurry application tank.

[0005] A wax mold slurry application device for preventing surface cracks in cast steel shells includes a rectangular slurry application pool, an inner liner seat inserted and fixed inside the slurry application pool, the inner liner seat including a horizontal base plate, inclined side baffles formed on both sides of the base plate, the inner liner seat and the slurry application pool enclosing a slurry application chamber formed in the shape of an isosceles trapezoid, two sets of side baffles distributed in front and back and in the shape of an isosceles trapezoid inserted inside the slurry application chamber, the side baffles abutting against the upper surface of the inner liner seat;

[0006] Longitudinal guide columns are fixed to both sides of the side partition, and the guide columns are respectively inserted into the front and rear walls of the slurry dipping tank; a longitudinal slurry inlet screw is inserted into the upper part of the front side of the slurry dipping tank, and the slurry inlet screw has a slurry inlet hole that communicates with the slurry dipping chamber; a longitudinal slurry outlet screw is inserted into the middle of the rear side of the slurry dipping tank, and the slurry outlet screw has a slurry outlet hole that communicates with the slurry dipping chamber, and a plug is screwed into the slurry outlet hole; handwheels are screwed onto the slurry inlet screw and the slurry outlet screw, and the handwheels are respectively pivotally connected to the front and rear walls of the slurry dipping tank;

[0007] Two sets of transverse guide rods are inserted at the bottom of the inner liner, which are located between two sets of side partitions. Several inclined stirring blades are fixed to the guide rods inside the inner liner. Both ends of the guide rods extend out of the inner liner and are fixed to U-shaped transmission belts. Guide wheels are inserted into the transmission belts. A motor shaft is inserted and fixed to the guide wheel on one side of the inner liner. The motor is fixed to the bottom of the slurry tank. A positioning shaft is pivotally connected to the guide wheel on the other side of the inner liner. The upper end of the positioning shaft is fixed to the slurry tank.

[0008] Preferably, the handwheel includes an annular internally threaded central sleeve, with several spokes fixedly connected to the outer wall of the internally threaded central sleeve, and wheel rims fixedly connected to the outer ends of the spokes; one end of the internally threaded central sleeve is formed with a connecting sleeve, which passes through the wall of the slurry pool and is inserted into and fixed with a limiting sleeve.

[0009] Preferably, a guide bushing is inserted and fixed on the guide post, and the guide bushing is inserted and fixed on the slurry pool;

[0010] The length of the guide column is not greater than the distance between the front and rear walls of the slurry dipping tank.

[0011] Preferably, the stirring blades are distributed on the front and rear sides of the guide rod, and the stirring blades on the two sets of guide rods are tilted in opposite directions.

[0012] Preferably, the upper end face of the side baffles on both sides of the inner liner is flush with the upper end face of the slurry pool, and the slurry outlet hole on the slurry outlet screw is close to the upper surface of the bottom plate.

[0013] Preferably, sealing grooves are formed on the bottom end face and both side walls of the side partition, and sealing strips are inserted into the sealing grooves, with the sealing strips pressing against the upper surface of the inner liner seat.

[0014] The beneficial effects of this utility model are as follows:

[0015] This slurry dipping device is equipped with an adjustable baffle, which can be moved to adjust the slurry capacity in the dipping tank; it is also equipped with a slurry stirring structure and a replenishment structure to facilitate the replenishment and stirring of slurry in the dipping tank. Attached image description:

[0016] Figure 1This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a front view structural diagram of the present invention;

[0018] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0019] Figure 4 This is a top view of the structure of this utility model.

[0020] In the diagram: 1. Dipping tank; 2. Liner seat; 21. Base plate; 22. Side baffle; 3. Side partition; 4. Guide column; 5. Slurry inlet screw; 51. Slurry inlet hole; 6. Slurry outlet screw; 61. Slurry outlet hole; 7. Handwheel; 71. Connecting sleeve; 8. Guide rod; 9. Agitator blade; 10. Transmission belt; 11. Guide wheel; 12. Motor; 13. Positioning shaft; 14. Limiting sleeve; 15. Guide shaft sleeve. Detailed implementation method:

[0021] Example: See Figures 1 to 4 As shown, a wax mold slurry application device for preventing surface cracks in cast steel shells includes a rectangular slurry application pool 1, an inner liner 2 fixedly inserted in the slurry application pool 1, the inner liner 2 including a horizontal base plate 21, inclined side baffles 22 formed on both sides of the base plate 21, the inner liner 2 and the slurry application pool 1 enclose a slurry application chamber formed in the shape of an isosceles trapezoid, two sets of side baffles 3 distributed in front and back and in the shape of an isosceles trapezoid are inserted in the slurry application chamber, and the side baffles 3 abut against the upper surface of the inner liner 2.

[0022] The side partition 3 is fixedly connected to both sides with longitudinal guide columns 4, which are respectively inserted into the front and rear walls of the slurry dipping tank 1; a longitudinal slurry inlet screw 5 is inserted into the upper part of the front side of the slurry dipping tank 1, and the slurry inlet screw 5 has a slurry inlet hole 51 that communicates with the slurry dipping chamber; a longitudinal slurry outlet screw 6 is inserted into the middle of the rear side of the slurry dipping tank 1, and the slurry outlet screw 6 has a slurry outlet hole 61 that communicates with the slurry dipping chamber, and a plug is screwed into the slurry outlet hole 61; a handwheel 7 is screwed onto the slurry inlet screw 5 and the slurry outlet screw 6, and the handwheel 7 is pivotally connected to the front and rear walls of the slurry dipping tank 1, respectively.

[0023] Two sets of transverse guide rods 8 are inserted at the bottom of the inner liner 2. The guide rods 8 are located between two sets of side partitions 3. Several inclined stirring blades 9 are fixed to the guide rods 8 inside the inner liner 2. The two ends of the guide rods 8 extend out of the inner liner 2 and are fixed to a U-shaped transmission belt 10. A guide wheel 11 is inserted into the transmission belt 10. The rotating shaft of a motor 12 is inserted and fixed on the guide wheel 11 on one side of the inner liner 2. The motor 12 is a servo motor and is fixed to the bottom of the slurry tank 1. A positioning shaft 13 is pivotally connected to the guide wheel 11 on the other side of the inner liner 2. The upper end of the positioning shaft 13 is fixed to the slurry tank 1.

[0024] The handwheel 7 includes an annular internally threaded central sleeve, with several spokes fixed to the outer wall of the internally threaded central sleeve, and wheel rims fixed to the outer ends of the spokes; one end of the internally threaded central sleeve is formed with a connecting sleeve 71, which passes through the wall of the slurry pool 1 and is fixed with a limiting sleeve 14, i.e., the handwheel 7 is pivotally connected to the slurry pool 1, and the side partition 3 can be moved by rotating the handwheel 7.

[0025] A guide sleeve 15 is inserted and fixed on the guide post 4, and the guide sleeve 15 is inserted and fixed on the slurry pool 1; the guide sleeve 15 improves the precision of the fit.

[0026] The length of the guide column 4 is not greater than the distance between the front and rear side walls of the slurry tank 1, so that the guide column 4 can be fixed to the side partition 3 first, and then the side partition 3 can be installed on the slurry tank 1.

[0027] The stirring blades 9 are distributed on the front and rear sides of the guide rod 8. The stirring blades 9 on the two sets of guide rods 8 are tilted in opposite directions, which can improve the stirring efficiency of the slurry in the slurry chamber.

[0028] The upper surfaces of the side baffles 22 on both sides of the inner liner 2 are flush with the upper surface of the slurry pool 1, and the slurry outlet hole 61 on the slurry outlet screw 6 is close to the upper surface of the bottom plate 21.

[0029] The bottom surface and both sides of the side partition 3 are formed with sealing grooves, and sealing strips are inserted into the sealing grooves. The sealing strips are pressed against the upper surface of the inner liner 2.

[0030] Working principle: This structure is a wax mold slurry application device for preventing cracks on the surface of cast steel shells. The slurry application chamber of the slurry application device is formed by the inner liner 2 and the slurry application pool 1. The capacity of the slurry application chamber can be adjusted by setting a movable and adjustable side partition 3 in the slurry application chamber.

[0031] Meanwhile, the inlet and outlet pipes of the slurry entering and exiting the slurry chamber are set on the side partition 3, which will not interfere with the entry and exit of the wax mold tree, nor with the adjustment of the side partition 3;

[0032] Furthermore, two guide rods 8 are installed at the bottom of the slurry dipping chamber, driving the stirring blades 9. By switching the forward and reverse rotation of the motor 2, the guide rods 8 are moved laterally and reciprocated by the transmission belt 10, thereby driving the stirring blades 9 to stir the slurry in the slurry dipping chamber.

[0033] The embodiments described above are illustrative of the present invention and are not intended to limit the present invention. Any person skilled in the art can modify the embodiments without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be as set forth in the claims.

Claims

1. A wax mold slurry application device for preventing surface cracks in cast steel mold shells, comprising a rectangular slurry application tank (1), an inner liner (2) fixedly inserted into the slurry application tank (1), the inner liner (2) comprising a horizontal base plate (21), inclined side baffles (22) formed on both sides of the base plate (21), the inner liner (2) and the slurry application tank (1) surrounding a slurry application chamber formed in the shape of an isosceles trapezoid, characterized in that: Two sets of side partitions (3) are inserted into the slurry chamber, arranged in front and back and in the shape of isosceles trapezoids. The side partitions (3) abut against the upper surface of the inner liner seat (2). The side partition (3) is fixed with longitudinal guide columns (4) on both sides, and the guide columns (4) are respectively inserted into the front and rear walls of the slurry tank (1); a longitudinal slurry inlet screw (5) is inserted into the upper part of the front side of the slurry tank (1), and a slurry inlet hole (51) connected to the slurry chamber is formed in the slurry inlet screw (5); a longitudinal slurry outlet screw (6) is inserted into the middle of the rear side of the slurry tank (1), and a slurry outlet hole (61) connected to the slurry chamber is formed in the slurry outlet screw (6), and a plug is screwed into the slurry outlet hole (61); a handwheel (7) is screwed onto the slurry inlet screw (5) and the slurry outlet screw (6), and the handwheel (7) is pivotally connected to the front and rear walls of the slurry tank (1); Two sets of transverse guide rods (8) are inserted at the bottom of the inner liner (2). The guide rods (8) are located between two sets of side partitions (3). Several inclined stirring blades (9) are fixed on the guide rods (8) inside the inner liner (2). The two ends of the guide rods (8) extend out of the inner liner (2) and are fixed to a U-shaped transmission belt (10). A guide wheel (11) is inserted in the transmission belt (10). A rotating shaft of a motor (12) is inserted and fixed on the guide wheel (11) on one side of the inner liner (2). The motor (12) is fixed to the bottom of the slurry tank (1). A positioning shaft (13) is pivotally connected to the guide wheel (11) on the other side of the inner liner (2). The upper end of the positioning shaft (13) is fixed to the slurry tank (1).

2. The wax mold coating device for preventing surface cracks in cast steel molds according to claim 1, characterized in that: The handwheel (7) includes an annular internal threaded center sleeve, and several spokes are fixedly connected to the outer wall of the internal threaded center sleeve. A wheel rim is fixedly connected to the outer end of the spokes. A connecting sleeve (71) is formed at one end of the internal threaded center sleeve. The connecting sleeve (71) passes through the pool wall of the slurry pool (1) and is fixed with a limiting sleeve (14).

3. The wax mold coating device for preventing surface cracks in cast steel molds according to claim 1, characterized in that: A guide bushing (15) is inserted and fixed on the guide column (4), and the guide bushing (15) is inserted and fixed on the slurry pool (1); The length of the guide column (4) is not greater than the distance between the front and rear side walls of the slurry pool (1).

4. The wax mold coating device for preventing surface cracks in cast steel molds according to claim 1, characterized in that: The stirring blades (9) are distributed on the front and rear sides of the guide rod (8), and the stirring blades (9) on the two sets of guide rods (8) are tilted in opposite directions.

5. A wax mold coating device for preventing surface cracks in cast steel molds according to claim 1, characterized in that: The upper surfaces of the side baffles (22) on both sides of the inner liner (2) are flush with the upper surface of the slurry pool (1), and the slurry outlet (61) on the slurry outlet screw (6) is close to the upper surface of the bottom plate (21).

6. A wax mold coating device for preventing surface cracks in cast steel molds according to claim 1, characterized in that: The bottom surface and both sides of the side partition (3) are formed with sealing grooves, and sealing strips are inserted into the sealing grooves and pressed against the upper surface of the inner liner (2).

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