Wax injection device for casting wax mould of gate valve body

Abstract

The utility model relates to a wax injection device for gate valve body wax mould casting, which comprises an operating table, a placing table and a wax injection machine head, the top of the operating table is fixedly connected with a vertical frame, the top of the vertical frame is fixedly connected with a first electric cylinder, the bottom of the first electric cylinder is provided with a lifting plate, and the top of the operating table is provided with a transverse moving plate; a longitudinal moving plate is arranged at the top of the transverse moving plate, a placing groove is formed in the top of the placing table, threaded holes are formed in the side edge of the placing table, first hand screwing bolts are arranged on the side edge of the placing table, first moving wheels are arranged at the bottom of the transverse moving plate, and a first fixing base is fixedly connected to the top of the operation table. Second moving wheels are arranged at the bottom of the longitudinal moving plate, a second fixing base is fixedly connected to the top of the transverse moving plate, and a third electric cylinder is installed in the second fixing base, so that the mold is effectively fixed, wax injection operation is convenient, the front-back and left-right positions of the mold are easy to adjust, and the clamping requirements of various types of molds are met.

Description

Technical Field

[0001] The utility model relates to the technical field of valve production, in particular to a wax injection device for wax mold casting of a gate valve body. Background Art

[0002] The casting of the valve body is an important part of the valve production process. The commonly used precision casting method is investment casting, which is also called lost wax casting. It includes processes such as wax pressing, wax repairing, tree assembly, slurry dipping, wax melting, pouring molten metal and post-processing. Lost wax casting is to use wax to make a wax mold of the part to be cast, and then apply mud on the wax mold. This is the mud mold. After the mud mold is dried, it is baked into a ceramic mold. Once baked, the wax mold is completely melted and lost, leaving only the ceramic mold. Generally, a pouring port is left when making the mud mold, and then the molten metal is poured into the pouring port. Therefore, the production of the wax mold is an important process, which is completed using a wax injection machine. The utility model patent with application number: CN202121902687.X discloses a wax injection machine for valve body wax mold casting, including a base, a bracket fixedly connected to the base, an electric push rod fixedly connected to the bracket, a sliding rod symmetrically fixedly connected to the bottom wall of the bracket, the two sliding rods are slidably connected to a support plate, the movable end of the electric push rod is fixedly connected to the support plate, the bottom wall of the support plate is fixedly connected to the wax injection machine head, a cavity is opened on the inner wall of the base, a rotating rod is rotatably connected through the inner wall of the cavity, one end of the rotating rod located in the cavity is fixedly connected to a first conical wheel, the bottom wall of the cavity is rotatably connected to a rotating shaft, the side wall of the rotating shaft is fixedly connected to a second conical wheel, and the top end of the rotating shaft is fixedly connected to a clamping mechanism for fixing the valve body wax mold; the first The conical wheel and the second conical wheel are meshed and connected, and the bracket has an inverted U-shaped structure. The end of the rotating rod away from the first conical wheel is fixedly connected to a rotating handle. The clamping mechanism includes a circular plate fixedly connected to the top of the rotating shaft, and three arc-shaped through-holes are evenly distributed on the circular plate. Each arc-shaped through-hole is eccentrically set, and a hinge bolt is slidably connected therein, and a nut is threadedly connected to one end of the hinge bolt. The top wall of the cavity is fixedly connected to the arc plate, and each hinge bolt side wall is rotatably connected to a push rod, which passes through and slides connected to the inner wall of the arc plate. The top wall of each push rod is fixedly connected to a connecting rod, and the top wall of the base is evenly distributed with three sliding holes. Each connecting rod is slidably connected to a corresponding sliding hole. The end of the connecting rod away from the push rod is fixedly connected to the clamping plate. However, the clamping mechanism is relatively fixed, making it difficult to adjust the position of the mold according to actual needs, and its flexibility and versatility are low. Utility Model Content

[0003] The utility model aims to solve the problems existing in the above-mentioned prior art and provides a wax injection device for gate valve body wax mold casting, which can effectively fix the mold and facilitate wax injection operation, has high flexibility and is easy to adjust the front, back, left and right positions of the mold, and has high versatility to meet the clamping needs of various types of molds.

[0004] The utility model solves the technical problem by adopting the following technical solution: This wax injection device for gate valve body wax mold casting comprises an operating table, a placing table and a wax injection machine head, the top of the operating table is fixedly connected to a stand, the top of the stand is fixedly connected to a first electric cylinder, the bottom of the first electric cylinder is provided with a lifting plate, the wax injection machine head is installed at the bottom of the lifting plate, the top of the operating table is provided with a transverse moving plate, the top of the transverse moving plate is provided with a longitudinal moving plate, the placing table is installed on the top of the longitudinal moving plate, the top of the placing table is provided with a placing groove, the side of the placing table is provided with a threaded hole, the threaded hole is connected to the inside of the placing groove, the side of the placing table is provided with a first hand-tightening bolt, the first hand-tightening bolt is connected to the threaded hole, and the first hand-tightening bolt is connected to the threaded hole. There are two bolts and threaded holes respectively. The two first hand-tightened bolts are distributed on the left and right sides of the placement table. A first track groove is provided on the top of the operating table. A first moving wheel is provided at the bottom of the transverse moving plate. The first moving wheel is inside the first track groove. A first fixed seat is fixedly connected to the top of the operating table. A second electric cylinder is installed inside the first fixed seat. The piston rod of the second electric cylinder is connected to the transverse moving plate. A second track groove is provided on the top of the transverse moving plate. A second moving wheel is provided at the bottom of the longitudinal moving plate. The second moving wheel is inside the second track groove. A second fixed seat is fixedly connected to the top of the transverse moving plate. A third electric cylinder is installed inside the second fixed seat. The piston rod of the third electric cylinder is connected to the transverse moving plate. The two plates are connected, and the mold that needs to be filled with wax is placed inside the placement slot. The operator screws the two first-hand tightening bolts at the same time. The two first-hand tightening bolts rotate and move toward the mold. The two first-hand tightening bolts clamp and fix the mold, and start the first electric cylinder to extend. The first electric cylinder drives the lifting plate and the wax injection machine head to move downward. The wax outlet at the bottom of the wax injection machine head corresponds to the filling port at the top of the mold. After the wax injection machine head reaches the corresponding position, the first electric cylinder stops running, and the wax injection machine head runs. The wax liquid reaches the filling port and the inside of the mold from the bottom of the wax injection machine head to complete the wax injection operation. When the filling port is not at the top center of the mold, the wax outlet at the bottom of the wax injection machine head and the filling port at the top of the mold are difficult to align. Corresponding to each other, the position of the mold is adjusted in time, the second electric cylinder is turned on to extend or retract, and the transverse movable plate is moved left and right with the help of the first movable wheel and the first track groove, so that the longitudinal movable plate, the placement table and the mold can be moved left and right, and the third electric cylinder is turned on to extend or retract, and the third electric cylinder is moved back and forth with the help of the second movable wheel and the second track groove, so that the placement table and the mold can be moved back and forth, and the position of the mold's filling port is adjusted to correspond to the wax outlet at the bottom of the wax injection machine head, and then the wax injection operation is carried out. The whole process effectively fixes the mold and facilitates the wax injection operation. It is highly flexible and easy to adjust the front, back, left and right positions of the mold. It is highly versatile and can meet the clamping needs of various types of molds.

[0005] For further improvement, a shooting tube is fixedly connected to the bottom of the wax injection machine head. The shooting tube is located at the center of the bottom of the wax injection machine head and directly corresponds to the inside of the filling port of the mold, thereby improving the accuracy of the wax injection process and avoiding overflow or splashing of wax liquid.

[0006] Further improvement, the first hand-tightening bolt is made of plastic, the two first hand-tightening bolts have the same size specifications, and the two first hand-tightening bolts can be used interchangeably, which further improves versatility. The first hand-tightening bolt made of plastic is relatively soft, and while clamping and fixing the mold, it avoids leaving marks on the side surface of the mold.

[0007] For further improvement, there are two second electric cylinders and two third electric cylinders respectively, two first track grooves and two second track grooves respectively, multiple first moving wheels and multiple second moving wheels respectively, two second electric cylinders and two third electric cylinders further provide effective thrust, multiple first moving wheels and multiple second moving wheels evenly share the top weight, thereby improving the stability of structures such as the horizontal moving plate, the longitudinal moving plate, the placement table and the mold during the movement process.

[0008] For further improvement, there are two support columns fixedly connected to the inner side of the stand, and the two support columns provide effective support to further improve the sturdiness of the stand.

[0009] For further improvement, the top of the support column is fixedly connected with an optical axis, the top of the optical axis is connected to the stand, a linear bearing is arranged inside the lifting plate, the optical axis and the linear bearing interact with each other, there are two optical axes and two linear bearings respectively, the lifting plate is further limited by the optical axis and the linear bearing, the lifting plate remains stable during the up and down movement, further improving the accuracy of the wax injection machine head and avoiding position deviation of the high wax injection machine head.

[0010] For further improvement, a positioning groove is provided on the top of the longitudinal movable plate, and a positioning block is fixedly connected to the bottom of the placement table. The positioning block is inserted into the positioning groove. The placement table is positioned and installed with the help of the positioning block and the positioning groove. The operation is simple and time-saving, and it is convenient to load and unload and easy to replace the placement table.

[0011] For further improvement, a second hand-tightened bolt is provided on the side of the longitudinal movable plate, a mounting hole is opened on the side of the longitudinal movable plate, the mounting hole and the positioning groove are connected to each other, a threaded groove is opened on the side of the positioning block, the second hand-tightened bolt passes through the mounting hole, the second hand-tightened bolt is threadedly connected to the threaded groove, the second hand-tightened bolt is connected to the inside of the positioning block, the positioning block is difficult to disengage from the positioning groove, so that the placement table is difficult to disengage from the top of the longitudinal movable plate, and the placement table is further fixed.

[0012] The beneficial effects of the utility model are:

[0013] 1. Place the mold that needs to be filled with wax into the placement slot. The operator simultaneously tightens the two first-hand screws. The two first-hand screws rotate and move toward the mold. The two first-hand screws clamp and fix the mold. Start the first electric cylinder to extend and run. The first electric cylinder drives the lifting plate and the wax injection machine head to move downward. The wax outlet at the bottom of the wax injection machine head corresponds to the filling port at the top of the mold. After the wax injection machine head reaches the corresponding position, the first electric cylinder stops running, and the wax injection machine head runs. The wax liquid flows from the bottom of the wax injection machine head to the filling port and the inside of the mold to complete the wax injection operation. When the filling port is not at the top center of the mold, the wax outlet at the bottom of the wax injection machine head and the filling port at the top of the mold are difficult to match. Corresponding to each other, the position of the mold is adjusted in time, the second electric cylinder is turned on to extend or retract, and the transverse movable plate is moved left and right with the help of the first movable wheel and the first track groove, so that the longitudinal movable plate, the placement table and the mold can be moved left and right, and the third electric cylinder is turned on to extend or retract, and the third electric cylinder is moved back and forth with the help of the second movable wheel and the second track groove, so that the placement table and the mold can be moved back and forth, and the position of the mold's filling port is adjusted to correspond to the wax outlet at the bottom of the wax injection machine head, and then the wax injection operation is carried out. The whole process effectively fixes the mold and facilitates the wax injection operation. It is highly flexible and easy to adjust the front, back, left and right positions of the mold. It is highly versatile and can meet the clamping needs of various types of molds.

[0014] 2. The two support columns provide effective support to further improve the sturdiness of the stand. The lifting plate is further limited by the optical axis and linear bearings. The lifting plate remains stable during the up and down movement, further improving the accuracy of the wax injection machine head and avoiding position deviation of the high wax injection machine head.

[0015] 3. The placement table is positioned and installed with the help of positioning blocks and positioning grooves. The operation is simple and time-saving. It is convenient for loading and unloading and easy to replace the placement table. The second hand tightens the bolts connected to the inside of the positioning block. The positioning block is difficult to separate from the positioning groove, making it difficult for the placement table to separate from the top of the longitudinal moving plate, and the placement table is further fixed. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 For the utility model Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 For the utility model Figure 1 Enlarged view of point B in the middle;

[0019] Figure 4 For the utility model Figure 1 Enlarged view of point C in the middle;

[0020] Figure 5This is a back view of the present invention;

[0021] Figure 6 This is a front view of the structure of the utility model;

[0022] Figure 7 This is a display diagram of the installation of the placement table of the utility model;

[0023] Figure 8 For the utility model Figure 7 Enlarged view of point D in the middle.

[0024] Explanation of the accompanying symbols: 1. Operating table; 2. Placing table; 3. Wax injection machine head; 4. Stand; 5. First electric cylinder; 6. Lifting plate; 7. Horizontal moving plate; 8. Longitudinal moving plate; 9. Placing slot; 10. Threaded hole; 11. First hand-tightening bolt; 12. First track groove; 13. First moving wheel; 14. First fixed seat; 15. Second electric cylinder; 16. Second track groove; 17. Second moving wheel; 18. Second fixed seat; 19. Third electric cylinder; 20. Shooting tube; 21. Support column; 22. Optical axis; 23. Linear bearing; 24. Positioning slot; 25. Positioning block; 26. Second hand-tightening bolt; 27. Mounting hole; 28. Threaded slot. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-8 This embodiment is further described:

[0026] like Figure 1-8As shown in: In this embodiment, a wax injection device for wax mold casting of a gate valve body is provided, including an operating table 1, a placing table 2 and a wax injection machine head 3. The top of the operating table 1 is fixedly connected to a stand 4, the top of the stand 4 is fixedly connected to a first electric cylinder 5, the bottom of the first electric cylinder 5 is provided with a lifting plate 6, the wax injection machine head 3 is installed at the bottom of the lifting plate 6, the top of the operating table 1 is provided with a transverse moving plate 7, the top of the transverse moving plate 7 is provided with a longitudinal moving plate 8, the placing table 2 is installed on the top of the longitudinal moving plate 8, the top of the placing table 2 is provided with a placing groove 9, the side of the placing table 2 is provided with a threaded hole 10, the threaded hole 10 is connected to the inside of the placing groove 9, the side of the placing table 2 is provided with a first hand-tightening bolt 11, the first hand-tightening bolt 11 is connected to the threaded hole 10, there are two first hand-tightening bolts 11 and threaded holes 10 respectively, and the two first hand-tightening bolts 11 are distributed on the left and right sides of the placing table 2, the top of the operating table 1 is provided with a first track groove 12, the bottom of the transverse moving plate 7 is provided with a first moving wheel 13, the first moving wheel 1 Inside the first track groove 12, a first fixed seat 14 is fixedly connected to the top of the operating table 1. A second electric cylinder 15 is installed inside the first fixed seat 14. The piston rod of the second electric cylinder 15 is connected to the transverse movable plate 7. A second track groove 16 is formed at the top of the transverse movable plate 7. A second movable wheel 17 is provided at the bottom of the longitudinal movable plate 8. The second movable wheel 17 is inside the second track groove 16. A second fixed seat 18 is fixedly connected to the top of the transverse movable plate 7. A third electric cylinder 19 is installed inside the second fixed seat 18. The piston rod of the third electric cylinder 19 is connected to the transverse movable plate 7. A shooting tube 20 is fixedly connected to the bottom of the wax injection machine head 3. The shooting tube 20 is located at the center of the bottom of the wax injection machine head 3. The first hand-tightening bolt 11 is made of plastic. The two first hand-tightening bolts 11 have the same dimensions. There are two second electric cylinders 15 and two third electric cylinders 19, respectively. There are two first track grooves 12 and two second track grooves 16, respectively. There are multiple first movable wheels 13 and multiple second movable wheels 17, respectively.

[0027] like Figure 1 、 Figure 3 and Figure 5 As shown: a support column 21 is fixedly connected to the inside of the stand 4, there are two support columns 21, an optical axis 22 is fixedly connected to the top of the support column 21, the top of the optical axis 22 is connected to the stand 4, a linear bearing 23 is provided inside the lifting plate 6, the optical axis 22 interacts with the linear bearing 23, and there are two optical axes 22 and two linear bearings 23 respectively.

[0028] like Figure 6-8As shown: a positioning groove 24 is provided on the top of the longitudinal movable plate 8, a positioning block 25 is fixedly connected to the bottom of the placement table 2, the positioning block 25 is inserted into the positioning groove 24, a second hand-tightening bolt 26 is provided on the side of the longitudinal movable plate 8, a mounting hole 27 is provided on the side of the longitudinal movable plate 8, the mounting hole 27 is communicated with the positioning groove 24, a threaded groove 28 is provided on the side of the positioning block 25, the second hand-tightening bolt 26 passes through the mounting hole 27, and the second hand-tightening bolt 26 is threadedly connected to the threaded groove 28.

[0029] When the utility model is in use: the placing table 2 is placed on the top of the longitudinal movable plate 8, the positioning block 25 at the bottom of the placing table 2 is plugged into the positioning groove 24 at the top of the longitudinal movable plate 8, and the second hand-tightening bolt 26 is obtained. The second hand-tightening bolt 26 passes through the mounting hole 27 and is threadedly connected to the thread groove 28. The placing table 2 is difficult to be separated from the top of the longitudinal movable plate 8. The placing table 2 is installed and fixed. The mold to be filled with wax is placed inside the placing groove 9. The operator simultaneously screws the two first hand-tightening bolts 11. The two first hand-tightening bolts 11 rotate and move toward the mold. The two first hand-tightening bolts 11 rotate and move toward the mold. The bolt 11 clamps and fixes the mold. The first hand-tightened bolt 11 made of plastic is relatively soft. While clamping and fixing the mold, it avoids leaving marks on the side surface of the mold. The first electric cylinder 5 is turned on to extend and run. The first electric cylinder 5 drives the lifting plate 6 and the wax injection machine head 3 to move downward. The lifting plate 6 is further limited by the optical axis 22 and the linear bearing 23. The lifting plate 6 remains stable during the up and down movement, further improving the accuracy of the wax injection machine head 3 and avoiding position deviation of the high wax injection machine head 3. The shooting tube 20 at the bottom of the wax injection machine head 3 corresponds to the filling port at the top of the mold. The wax injection machine head 3 reaches After the wax injection molding machine reaches the corresponding position, the first electric cylinder 5 stops running, the wax injection molding machine head 3 starts running, and the wax liquid reaches the filling port and the inside of the mold from the bottom of the wax injection molding machine head 3 to complete the wax injection operation. When the filling port is not at the top center of the mold, the shooting tube 20 at the bottom of the wax injection molding machine head 3 and the filling port at the top of the mold are difficult to correspond to each other. The position of the mold is adjusted in time, and the second electric cylinder 15 is turned on to extend or retract. The multiple first moving wheels 13 roll in the two first track grooves 12 respectively, and the transverse moving plate 7 moves left and right with the help of the first moving wheels 13 and the first track groove 12, so that the longitudinal moving plates 8, The placement table 2 and the mold are moved left and right, and the third electric cylinder 19 is turned on to extend or retract. Multiple second moving wheels 17 roll in the two second track grooves 16 respectively. The third electric cylinder 19 moves back and forth with the help of the second moving wheels 17 and the second track grooves 16, so that the placement table 2 and the mold can be moved back and forth. The position of the mold's filling port is adjusted to correspond to the bottom shooting tube 20 of the wax injection machine head 3, and then the wax injection operation is carried out. The whole process effectively fixes the mold and facilitates the wax injection operation. It is highly flexible and easy to adjust the front, back, left and right positions of the mold. It is highly versatile and can meet the clamping needs of various types of molds.

[0030] While the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A wax injection device for gate valve body wax casting, comprising an operating table (1), a placement table (2) and a wax injection machine head (3), characterized in that: The top of the operating table (1) is fixedly connected to a stand (4), the top of the stand (4) is fixedly connected to a first electric cylinder (5), the bottom of the first electric cylinder (5) is provided with a lifting plate (6), the wax injection machine head (3) is installed at the bottom of the lifting plate (6), the top of the operating table (1) is provided with a transverse moving plate (7), the top of the transverse moving plate (7) is provided with a longitudinal moving plate (8), the placement table (2) is installed on the top of the longitudinal moving plate (8), the top of the placement table (2) is provided with a placement groove (9), the side of the placement table (2) is provided with a threaded hole (10), the threaded hole (10) is connected to the inside of the placement groove (9), the side of the placement table (2) is provided with a first hand-tightening bolt (11), the first hand-tightening bolt (11) is connected to the threaded hole (10), there are two first hand-tightening bolts (11) and two threaded holes (10), and the two first hand-tightening bolts (11) are distributed on the placement table (2). On the left and right sides, the operating table (1) is provided with a first track groove (12) on the top, the transverse moving plate (7) is provided with a first moving wheel (13) at the bottom, the first moving wheel (13) is inside the first track groove (12), the operating table (1) is fixedly connected with a first fixing seat (14) on the top, a second electric cylinder (15) is installed inside the first fixing seat (14), the piston rod of the second electric cylinder (15) is connected to the transverse moving plate (7), the transverse moving plate (7) is provided with a second track groove (16), the longitudinal moving plate (8) is provided with a second moving wheel (17) at the bottom, the second moving wheel (17) is inside the second track groove (16), the transverse moving plate (7) is fixedly connected with a second fixing seat (18), the second fixing seat (18) is installed inside the third electric cylinder (19), the piston rod of the third electric cylinder (19) is connected to the transverse moving plate (7).

2. A wax injection device for gate valve body wax pattern casting according to claim 1, characterized in that: The bottom of the wax injection machine head (3) is fixedly connected with an injection tube (20), and the injection tube (20) is located at the center of the bottom of the wax injection machine head (3).

3. The wax injection device for gate valve body wax pattern casting according to claim 1, characterized in that: The first hand-tightening bolts (11) are made of plastic, and the two first hand-tightening bolts (11) have the same size and specifications.

4. The wax injection device for gate valve body wax casting according to claim 1, characterized in that: There are two second electric cylinders (15) and two third electric cylinders (19), two first track grooves (12) and two second track grooves (16), and multiple first moving wheels (13) and multiple second moving wheels (17).

5. The wax injection device for gate valve body wax pattern casting according to claim 1, characterized in that: The inner side of the stand (4) is fixedly connected with a support column (21), and there are two support columns (21).

6. A wax injection device for gate valve body wax pattern casting according to claim 5, characterized in that: The top of the support column (21) is fixedly connected to an optical axis (22), the top of the optical axis (22) is connected to the stand (4), a linear bearing (23) is provided inside the lifting plate (6), the optical axis (22) and the linear bearing (23) interact with each other, and there are two optical axes (22) and two linear bearings (23).

7. The wax injection device for gate valve body wax pattern casting according to claim 1, characterized in that: A positioning groove (24) is provided on the top of the longitudinal movable plate (8), and a positioning block (25) is fixedly connected to the bottom of the placement platform (2), and the positioning block (25) is inserted into the positioning groove (24).

8. The wax injection device for gate valve body wax casting according to claim 7, characterized in that: A second hand-tightening bolt (26) is provided on the side of the longitudinal movable plate (8), a mounting hole (27) is provided on the side of the longitudinal movable plate (8), the mounting hole (27) and the positioning groove (24) are communicated with each other, a threaded groove (28) is provided on the side of the positioning block (25), the second hand-tightening bolt (26) passes through the mounting hole (27), and the second hand-tightening bolt (26) is threadedly connected to the threaded groove (28).

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