Casting mold for casting bell furnace accessories

Abstract

The invention relates to the technical field of mold design, in particular to a casting mold for casting bell furnace accessories, which comprises a mold opening and closing device, the mold opening and closing device comprises a pair of support plates respectively positioned at the upper end and the lower end, and the support plates are fixedly mounted through a connecting column. According to the casting mold for casting the bell-type furnace accessories, cavities of different models can be rapidly replaced by directly replacing the upper mold base and the lower mold base, so that corresponding castings are produced, structures such as a mold opening and closing device can be reused, and the development cost of the mold is reduced; and the upper die base and the lower die base can also be quickly fixed through the limiting connecting device, so that the replacement efficiency of the cavity is improved, quick flexible production is facilitated, and the problems that an opening and closing die and other structures cannot be reused in an existing die and the operation of replacing the type of the cavity is tedious are solved. And the mold development cost can be effectively reduced, and the cavity replacement efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of mold design, in particular to a casting mold for casting bell furnace accessories. Background Art

[0002] The bell furnace is a furnace with a lifting and lowering furnace body, which is mainly used for sintering tests. During the manufacturing process of the bell furnace, a large number of accessories need to be produced by casting. These accessories mainly include the furnace body base, the carrying trolley, the guide rails, the furnace body columns and other parts. Due to the wide variety of such parts, a large number of molds need to be made during the casting production. In addition, due to the large number of product models of the bell furnace, the sizes of the same type of accessories are different. Therefore, in traditional production, a set of molds needs to be designed separately for each accessory of different sizes, which requires high investment costs.

[0003] The authorization announcement number is CN2220497722U, and the patent name is "A mold with a replaceable cavity." The patent provides a mold with a replaceable cavity. The use of this mold can effectively reuse auxiliary structures such as the opening and closing structure of the traditional mold, thereby reducing the cost of mold development. However, the mold fixing structure is complex and cannot achieve rapid replacement of the required products.

[0004] Therefore, we need a casting mold for bell furnace accessories to solve the problem that the existing mold cannot reuse the opening and closing mold structure and the operation of changing the cavity model is cumbersome, which can effectively reduce the mold development cost and improve the efficiency of cavity replacement. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the existing mold cannot reuse the opening and closing mold structures and the operation of changing the cavity model is cumbersome. The present application provides a casting mold for casting bell furnace accessories, which can effectively reduce the mold development cost and improve the efficiency of cavity replacement.

[0006] To achieve the above object, the present invention provides the following technical solution: a casting mold for bell furnace accessories, comprising: A mold opening and closing device, the mold opening and closing device comprises a pair of support plates respectively located at the upper and lower ends, and the support plates are fixedly installed by connecting columns; A fixing device, wherein each of the two support plates is driven by a telescopic push rod, an upper mold base is clamped and installed in the fixing device located at the upper end of the mold opening and closing device through a limiting connection device, and a lower mold base is fixed in the fixing device located at the lower end of the mold opening and closing device through another limiting connection device, the upper mold base and the lower mold base are controlled to open or close the mold through the mold opening and closing device, and a cavity for casting a casting is jointly formed between the upper mold base and the lower mold base, and a gate connected to the cavity is provided on the upper mold base.

[0007] Preferably, the fixing device comprises a fixing frame, and a sliding guide seat slidably mounted with the connecting column is integrally formed on the fixing frame.

[0008] Preferably, the fixing frame is integrally formed with a limit support for limiting the installation position of the upper die seat or the lower die seat, and the fixing frame is integrally formed with an intermediate support column for pressing on the middle of the upper die seat or the lower die seat to prevent deformation of the upper die seat or the lower die seat.

[0009] Preferably, the cross section of the connecting column is a non-circular cross section, and a limiting seat for limiting the movement position of the sliding guide seat so as to position the upper die seat and the lower die seat is fixedly installed in the middle of the connecting column.

[0010] Preferably, the limiting connection device includes a pushing plate, and the limiting plate is fixedly installed on the pushing plate, and an insertion hole for sliding installation with the limiting plate is opened on the fixing frame, and the upper mold base and the lower mold base are both provided with positioning connection holes for plugging and fixing with the limiting plate.

[0011] Preferably, a guide rod is fixedly mounted on the fixing frame, and a guide matching hole which is slidably mounted with the guide rod is opened on the pushing plate.

[0012] Preferably, the fixed frame is provided with a clamping adjustment device for driving the push plate to move, and the clamping adjustment device includes a fixed seat fixedly mounted on the fixed frame, and the fixed seat is provided with a guide hole, a push rod slidably mounted on the guide hole is fixedly mounted on the push plate, and a rack is provided on the push rod, a driving wheel meshing with the rack is rotatably mounted on the fixed seat, and a worm wheel is coaxially fixedly mounted on the driving wheel, a worm screw meshing with the worm wheel is rotatably mounted on the fixed seat, and a hand wheel for facilitating the rotation of the worm screw is coaxially mounted on the worm screw.

[0013] Preferably, cooling channels for cooling the mold cavity are provided in the upper mold base and the lower mold base, and a cooling device for providing coolant to the cooling channel is provided on the push plate, the cooling device includes a docking insertion tube fixedly mounted on the push plate and inserted into the cooling channel, and the docking insertion tube is sealed to the inner wall of the cooling channel via a sealing ring, an insertion port is provided on the fixed frame for facilitating the insertion of the docking insertion tube into the cooling channel, and the docking insertion tube is connected to a coolant circulation pipe via a cooling branch pipe, the coolant circulation pipe is connected to an external coolant circulation supply device, and a regulating valve for regulating the flow rate of coolant in the cooling branch pipe is fixedly mounted on the cooling branch pipe.

[0014] Preferably, the upper die base and the lower die base are respectively provided with an ejector pin device for ejecting the casting from the mold cavity, and the ejector pin device includes a main ejector pin slidably mounted on the upper die base or the lower die base, and a limiting protrusion that cooperates with the upper die base or the lower die base is fixedly mounted on the main ejector pin, and the limiting protrusion is connected to the upper die base or the lower die base through a reset spring, and a pressing rod for pressing the main ejector pin is provided on the support plate.

[0015] Preferably, the telescopic push rod is a hydraulic push rod or a ball screw type electric push rod, and an auxiliary bracket for enhancing the structural strength is fixedly installed between the support plate and the connecting column.

[0016] Compared with the prior art, the present invention has the following beneficial effects: A casting mold for casting bell furnace accessories proposed in the present invention can quickly replace cavities of different models by directly replacing the upper mold base and the lower mold base, so as to produce corresponding castings. In this way, structures such as the mold opening and closing devices can be reused to reduce the development cost of the mold, and the upper mold base and the lower mold base can also be quickly fixed by a limiting connection device, thereby improving the efficiency of cavity replacement, facilitating rapid and flexible production, and solving the problem that the existing mold cannot reuse structures such as the mold opening and closing devices and the operation of replacing the cavity model is cumbersome, which can effectively reduce the mold development cost and improve the efficiency of cavity replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a structural schematic diagram of the mold opening and closing device of the present invention; Figure 3 It is a schematic diagram of the installation of the fixing device and the lower die base of the present invention; Figure 4 It is a side view of the installation of the fixing device and the lower die base of the present invention; Figure 5 It is a schematic diagram of the structure of the fixing device of the present invention; Figure 6 is a schematic diagram of the interior of the fixing device of the present invention; Figure 7 It is a schematic diagram of the installation of the cooling device and the limiting connection device of the present invention; Figure 8 It is a side view of the cooling device and the limiting connection device of the present invention; Fig. 9 It is a structural sectional view of the upper die base of the present invention.

[0018] In the figure: 1. mold opening and closing device; 101. support plate; 102. auxiliary bracket; 103. limit seat; 104. connecting column; 105. top pressure rod; 106. telescopic push rod; 2. clamping adjustment device; 201. guide hole; 202. fixed seat; 203. driving wheel; 204. worm wheel; 205. worm; 206. hand wheel; 3. fixing device; 301. sliding guide seat; 302. guide rod; 303. limit support; 304. insertion port; 305. fixed frame; 306. insertion hole; 307. middle Support column; 4. Cooling device; 401. Regulating valve; 402. Docking insertion tube; 403. Cooling branch pipe; 404. Sealing ring; 405. Coolant circulation pipe; 5. Limiting connection device; 501. Push plate; 502. Guide matching hole; 503. Limiting plate; 504. Push rod; 505. Rack; 6. Ejector device; 601. Main ejector; 602. Limiting protrusion; 603. Return spring; 7. Positioning connection hole; 8. Cooling runner; 9. Cavity; 10. Upper mold base; 11. Lower mold base; 12. Gate. DETAILED DESCRIPTION

[0019] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example 1: Please refer to Figures 1 to 9The present invention provides a casting mold for bell furnace accessories, including a mold opening and closing device 1 and a fixing device 3. The mold opening and closing device 1 includes a pair of support plates 101 located at the upper and lower ends respectively, and the support plates 101 are fixedly installed by connecting columns 104. The support plates 101 can be fixed to the ground or other supporting devices by anchor bolts. There is a fixing device 3 on the two support plates 101 respectively driven by telescopic push rods 106. The telescopic push rods 106 are hydraulic push rods or ball screw type electric push rods. The telescopic push rods 106 can also be replaced by manual jacks. An auxiliary bracket 102 for enhancing structural strength is fixedly installed between the support plates 101 and the connecting columns 104. The auxiliary bracket 102 is used to prevent the connecting columns 104 from deforming, thereby ensuring the structural stability of the mold opening and closing device 1. An upper mold base 10 is clamped and installed in the fixing device 3 located at the upper end of the mold opening and closing device 1 through a limit connecting device 5, and an upper mold base 10 is located at the lower end of the mold opening and closing device 1. The lower die base 11 is fixed in the fixing device 3 at the end by another limiting connecting device 5, and the upper die base 10 and the lower die base 11 are controlled to open or close the die through the opening and closing die device 1, and a cavity 9 for casting a casting is formed between the upper die base 10 and the lower die base 11, and a gate 12 connected to the cavity 9 is arranged on the upper die base 10. When casting is needed, the two fixing devices 3 can be pushed to the middle part of the connecting column 104 at the same time by the telescopic push rod 106, so that the upper die base 10 and the lower die base 11 respectively installed on the two fixing devices 3 can be closed, and then casting can be carried out into the cavity 9 through the gate 12. After the casting in the cavity 9 is cooled and formed, the two fixing devices 3 are pulled up and down respectively by the telescopic push rod 106, so that the upper die base 10 and the lower die base 11 respectively located on the two fixing devices 3 can be opened, and the operator can take out the casting from the cavity 9.

[0021] See also Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Fig. 9The fixing device 3 includes a fixing frame 305, and a sliding guide seat 301 is integrally formed on the fixing frame 305 and is slidably mounted with the connecting column 104. A limit support 303 is integrally formed on the fixing frame 305 for limiting the installation position of the upper mold base 10 or the lower mold base 11, and an intermediate support column 307 is integrally formed on the fixing frame 305 for pressing on the middle part of the upper mold base 10 or the lower mold base 11 to prevent the upper mold base 10 or the lower mold base 11 from deforming. The cross section of the connecting column 104 is a non-circular cross section, and a limit seat 103 is fixedly installed in the middle part of the connecting column 104 for limiting the movement position of the sliding guide seat 301 to position the upper mold base 10 and the lower mold base 11. The fixing frame 305 is slidably mounted on the connecting column 104 by using the sliding guide seat 301, which can effectively guide the fixing device 3 to move along the connecting column 104, thereby preventing the fixing device 3 from shaking during the movement and causing the upper die seat 10 and the lower die seat 11 to be misaligned when the mold is closed, effectively avoiding the casting defects caused by the misalignment of the mold. At the same time, the middle support column 307 provided on the fixing frame 305 for supporting the middle part of the upper die seat 10 or the lower die seat 11 can also effectively prevent the middle part of the upper die seat 10 and the lower die seat 11 from being deformed during the casting process, thereby causing the casting accuracy of the casting to decrease, further ensuring the casting quality of the casting. The limit seat 103 can be used to limit the moving position of the two fixing devices 3, thereby ensuring that the upper mold base 10 and the lower mold base 11 are molded at the correct position, avoiding the problem that the fixing frame 305 cannot move accurately into place due to the lack of a positioning structure for the fixing frame 305, resulting in the upper mold base 10 and the lower mold base 11 cannot be properly molded. Pressure sensors for detecting the contact pressure between the sliding guide seat 301 and the limit seat 103 can also be installed at the upper and lower ends of the limit seat 103, so that the pressure sensor can be used to indirectly measure the mold closing pressure between the upper mold base 10 and the lower mold base 11, and then the upper mold base 10 and the lower mold base 11 can be accurately molded.

[0022] See also Figure 1 , Figure 3 , Figure 4 , Figure 7 , Figure 8 and Fig. 9The limiting connection device 5 includes a push plate 501, and a limiting plate 503 is fixedly installed on the push plate 501, and an insertion hole 306 is provided on the fixing frame 305 to be slidably installed with the limiting plate 503. The upper die base 10 and the lower die base 11 are both provided with a positioning connection hole 7 to be plugged and fixed with the limiting plate 503. The fixing frame 305 is fixedly installed with a guide rod 302, and the push plate 501 is provided with a guide matching hole 502 to be slidably installed with the guide rod 302. By pushing and pulling the push plate 501 so that the push plate 501 moves along the guide rod 302, the limiting plate 503 can be inserted into the positioning connection hole 7, thereby achieving the purpose of fixing the upper die base 10 or the lower die base 11 on the fast fixing device 3 by using the limiting connection device 5.

[0023] In this embodiment, different types of cavities 9 can be quickly replaced by directly replacing the upper mold base 10 and the lower mold base 11 to produce corresponding castings. In this way, the opening and closing mold device 1 and other structures can be reused to reduce the development cost of the mold, and the upper mold base 10 and the lower mold base 11 can also be quickly fixed by the limiting connection device 5, thereby improving the replacement efficiency of the cavity 9, facilitating rapid and flexible production, and solving the problem that the existing mold cannot reuse the opening and closing mold structure and other structures and the operation of changing the cavity model is cumbersome, which can effectively reduce the mold development cost and improve the cavity replacement efficiency.

[0024] Example 2: Please refer to Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6On the basis of the first embodiment, a clamping adjustment device 2 for driving the push plate 501 to move is provided on the fixed frame 305, and the clamping adjustment device 2 includes a fixed seat 202 fixedly installed with the fixed frame 305, and a guide hole 201 is provided on the fixed seat 202, a push rod 504 slidably installed with the guide hole 201 is fixedly installed on the push plate 501, and a rack 505 is provided on the push rod 504, a driving wheel 203 meshing with the rack 505 is rotatably installed on the fixed seat 202, and a worm wheel 204 is coaxially fixedly installed on the driving wheel 203, a worm 205 meshing with the worm wheel 204 is rotatably installed on the fixed seat 202, and a hand wheel 206 for facilitating the rotation of the worm 205 is coaxially installed on the worm 205. The operator can drive the worm 205 to move by manually rotating the hand wheel 206, and then the worm 205 will drive the worm wheel 204 to rotate, and the worm wheel 204 will drive the coaxial driving wheel 203 to rotate, and the driving wheel 203 can drive the movement of the push rod 504 by meshing with the rack 505, thereby driving the push plate 501 to move, so that the hand wheel 206 can be used to control the clamping process of the limit plate 503 on the upper mold base 10 or the lower mold base 11, and the worm gear mechanism composed of the worm wheel 204 and the worm 205 also has a self-locking function, which can effectively prevent the limit plate 503 from sliding out of the positioning connection hole 7 during operation, thereby improving the reliability of the equipment. It further solves the problem that the existing mold cannot reuse the opening and closing mold structure and the operation of changing the cavity model is cumbersome, which can effectively reduce the mold development cost and improve the efficiency of cavity replacement.

[0025] Example 3: Please refer to Figure 1 , Figure 3 , Figure 4 , Figure 7 and Figure 8On the basis of the second embodiment, a cooling channel 8 for cooling the cavity 9 is provided in the upper die base 10 and the lower die base 11, and a cooling device 4 for providing coolant to the cooling channel 8 is provided on the push plate 501, and the cooling device 4 includes a docking insertion tube 402 fixedly installed on the push plate 501 and inserted into the cooling channel 8, and the docking insertion tube 402 is sealed with the inner wall of the cooling channel 8 through a sealing ring 404, an insertion port 304 is provided on the fixed frame 305 for facilitating the insertion of the docking insertion tube 402 into the cooling channel 8, and the docking insertion tube 402 is connected to the coolant circulation pipe 405 through the cooling branch pipe 403, the coolant circulation pipe 405 is connected to the external coolant circulation supply equipment, and a regulating valve 401 for adjusting the coolant flow in the cooling branch pipe 403 is fixedly installed on the cooling branch pipe 403. In order to better cool the casting, the number of cooling channels 8 set in the upper mold base 10 and the lower mold base 11 of different models will be determined according to the specific casting, and the two ends of each cooling channel 8 are connected between a pair of docking insertion tubes 402 for supplying and discharging coolant respectively, and the docking insertion tube 402 is connected to the coolant circulation pipe 405 through the cooling branch pipe 403, and then the coolant is circulated between the cooling channel 8 and the external coolant circulation supply equipment through the coolant circulation pipe 405, and each cooling branch pipe 403 is provided with an independent regulating valve 401, and the regulating valve 401 can be used to adjust the flow rate of the coolant provided by the cooling branch pipe 403, so that different flow rates can be provided for different cooling channels 8 in this way, so that differentiated heat exchange effects can be provided to different parts of the casting through multiple cooling channels 8 according to the shape of the casting, so that each area of ​​the casting can be cooled evenly, avoiding the problem of excessive internal stress caused by different cooling times of different parts of the casting. Moreover, the installation process of the cooling device 4 can be directly driven by the limit connection device 5 without the need for an additional fixing structure, so the installation and disassembly methods are simple, and the replacement efficiency of the upper mold base 10 and the lower mold base 11 is improved. It further solves the problem that the existing mold cannot reuse the opening and closing mold structure and the operation of changing the cavity model is cumbersome, which can effectively reduce the mold development cost and improve the cavity replacement efficiency.

[0026] Example 4: Please refer to Figure 1 , Figure 2 , Figure 3 and Fig. 9On the basis of the second embodiment, the upper die base 10 and the lower die base 11 are respectively provided with an ejector device 6 for ejecting the casting from the cavity 9, and the ejector device 6 includes a main ejector 601 slidably mounted on the upper die base 10 or the lower die base 11, and a limiting protrusion 602 that cooperates with the upper die base 10 or the lower die base 11 is fixedly mounted on the main ejector 601, and the limiting protrusion 602 is connected to the upper die base 10 or the lower die base 11 through a reset spring 603, and a pressing rod 105 for pressing the main ejector 601 is provided on the support plate 101. When the upper die base 10 and the lower die base 11 are in the mold closing state, the main ejector pin 601 will no longer be subjected to the extrusion force from the ejector rod 105, so that the return spring 603 can be used to push the limiting protrusion 602 to fit to the preset limiting position on the upper die base 10 and the lower die base 11, so that the end of the main ejector pin 601 can be engaged with the bottom of the cavity 9, so that the main ejector pin 601 can be prevented from interfering with the normal casting of the casting. When the casting needs to be opened, the upper die base 10 and the lower die base 11 will Driven by the telescopic push rod 106, it will be pulled to a position close to the support plate 101, and the push rod 105 will also push on the end of the main ejector 601, so that the main ejector 601 is gradually inserted into the cavity 9 and gradually pushed out of the cavity 9, so that it is convenient for operators to take out the casting from the cavity 9, so that the working state of the main ejector 601 can be directly controlled by the telescopic push rod 106, without adding an additional ejection drive structure, thereby simplifying the structure of the equipment and increasing the reliability of the equipment. It further solves the problem that the existing mold cannot reuse the opening and closing mold structure and the operation of changing the cavity model is cumbersome, which can effectively reduce the mold development cost and improve the efficiency of cavity replacement.

[0027] Embodiment 5: Based on Embodiment 4, the present invention further provides a method for using a casting mold for casting bell furnace accessories, comprising the following steps: Step 1: First, select the corresponding model of the upper die seat 10 and the lower die seat 11 according to the bell-shaped furnace accessories to be cast. The operator pushes the limit plate 503 to the non-working position through the hand wheel 206, and then presses the upper die seat 10 and the lower die seat 11 into the corresponding fixing frame 305 respectively until they contact with the limit support 303 at the corresponding position, and then rotates the hand wheel 206 in the opposite direction to insert the limit plate 503 into the corresponding positioning connection hole 7 to fix the upper die seat 10 and the lower die seat 11. At the same time, the docking insertion tube 402 will also be correctly inserted into the corresponding cooling channel 8. Then the operator adjusts each regulating valve 401 according to the cooling requirements of the corresponding model of the upper die seat 10 and the lower die seat 11 so that the corresponding cooling channel 8 can accurately obtain the required flow of coolant; Step 2: The operator then checks the mold cavity 9 located in the upper mold base 10 and the lower mold base 11, removes the dust inside the mold cavity 9, and cleans the position where the upper mold base 10 and the lower mold base 11 need to fit together. Then, the operator pushes the two fixing devices 3 closer to each other through the telescopic push rod 106, so that the upper mold base 10 and the lower mold base 11 can be molded together. At this time, the operator checks whether the upper mold base 10 and the lower mold base 11 are correctly molded together. When the upper mold base 10 and the lower mold base 11 are correctly molded together, the casting process can be started; Step three: When pouring, the operator first pours the molten metal from the pouring gate 12 into the cavity 9, and then supplies coolant to the cooling channel 8 through the external coolant circulation supply equipment. Different types of castings require different cooling times. After waiting for a corresponding time according to the type of casting to be cast, the external coolant circulation supply equipment stops supplying coolant. Then the operator uses the telescopic push rod 106 to drive the upper mold base 10 and the lower mold base 11 to move toward the positions close to the two support plates 101 respectively, so as to open the mold. At this time, the push rod 105 will also push the main ejector pin 601, so as to use the main ejector pin 601 to push the casting out of the cavity 9. Then the operator takes the casting out of the cavity 9 and enters the next round of casting.

[0028] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. A casting mold for bell furnace accessories, characterized in that: include: A mold opening and closing device (1), the mold opening and closing device (1) comprising a pair of support plates (101) located at upper and lower ends respectively, and the support plates (101) are fixedly mounted via connecting columns (104); A fixing device (3), wherein each of the two support plates (101) is driven by a telescopic push rod (106), an upper die seat (10) is mounted in the fixing device (3) at the upper end of the mold opening and closing device (1) via a limit connection device (5), and a lower die seat (11) is fixed in the fixing device (3) at the lower end of the mold opening and closing device (1) via another limit connection device (5), the upper die seat (10) and the lower die seat (11) are controlled to open or close the mold via the mold opening and closing device (1), and a mold cavity (9) for casting a casting is formed between the upper die seat (10) and the lower die seat (11), and a gate (12) connected to the mold cavity (9) is provided on the upper die seat (10).

2. A casting mold for bell furnace accessories according to claim 1, characterized in that: The fixing device (3) comprises a fixing frame (305), and a sliding guide seat (301) is integrally formed on the fixing frame (305) and is slidably mounted with the connecting column (104).

3. A casting mold for bell furnace accessories according to claim 2, characterized in that: The fixing frame (305) is integrally formed with a limit support (303) for limiting the installation position of the upper die seat (10) or the lower die seat (11), and the fixing frame (305) is integrally formed with an intermediate support column (307) for pressing against the middle of the upper die seat (10) or the lower die seat (11) to prevent deformation of the upper die seat (10) or the lower die seat (11).

4. A casting mold for bell furnace accessories according to claim 2, characterized in that: The cross section of the connecting column (104) is a non-circular cross section, and a limiting seat (103) is fixedly installed in the middle of the connecting column (104) for limiting the movement position of the sliding guide seat (301) so as to position the upper die seat (10) and the lower die seat (11).

5. The casting mold for bell furnace accessories according to claim 2, characterized in that: The limit connection device (5) comprises a push plate (501), a limit plate (503) is fixedly mounted on the push plate (501), and an insertion hole (306) is provided on the fixed frame (305) for slidingly mounting with the limit plate (503), and a positioning connection hole (7) is provided on the upper die base (10) and the lower die base (11) for plugging and fixing with the limit plate (503).

6. A casting mold for bell furnace accessories according to claim 5, characterized in that: The fixing frame (305) is fixedly mounted with a guide rod (302), and the pushing plate (501) is provided with a guide matching hole (502) for slidingly mounting with the guide rod (302).

7. The casting mold for bell furnace accessories according to claim 5, characterized in that: The fixing frame (305) is provided with a clamping adjustment device (2) for driving the push plate (501) to move, and the clamping adjustment device (2) comprises a fixing seat (202) fixedly mounted on the fixing frame (305), and a guide hole (201) is provided on the fixing seat (202); a push rod (504) slidably mounted on the guide hole (201) is fixedly mounted on the push plate (501), and a rack (505) is provided on the push rod (504); a driving wheel (203) meshingly mounted on the fixing seat (202), and a worm wheel (204) is coaxially fixedly mounted on the driving wheel (203); a worm (205) meshingly connected to the worm wheel (204) is rotatably mounted on the fixing seat (202), and a hand wheel (206) for conveniently rotating the worm (205) is coaxially mounted on the worm wheel (205).

8. The casting mold for bell furnace accessories according to claim 5, characterized in that: The upper die seat (10) and the lower die seat (11) are both provided with a cooling channel (8) for cooling the mold cavity (9), and the push plate (501) is provided with a cooling device (4) for supplying cooling liquid to the cooling channel (8), the cooling device (4) comprising a butt-joint insertion tube (402) fixedly mounted on the push plate (501) and inserted into the cooling channel (8), and the butt-joint insertion tube (402) is connected to the inner wall of the cooling channel (8) through a sealing ring (404). The wall is sealed, and an insertion port (304) is provided on the fixing frame (305) for facilitating the insertion of the docking insertion tube (402) into the cooling channel (8), and the docking insertion tube (402) is connected to the coolant circulation tube (405) through the cooling branch tube (403), and the coolant circulation tube (405) is connected to an external coolant circulation supply device, and a regulating valve (401) for regulating the flow rate of the coolant in the cooling branch tube (403) is fixedly installed on the cooling branch tube (403).

9. The casting mold for bell furnace accessories according to claim 1, characterized in that: The upper die base (10) and the lower die base (11) are respectively provided with an ejector device (6) for ejecting the casting from the cavity (9), and the ejector device (6) comprises a main ejector (601) slidably mounted on the upper die base (10) or the lower die base (11), and a limiting protrusion (602) which is limitedly matched with the upper die base (10) or the lower die base (11) is fixedly mounted on the main ejector (601), and the limiting protrusion (602) is connected to the upper die base (10) or the lower die base (11) via a return spring (603), and a pressing rod (105) for pressing the main ejector (601) is provided on the support plate (101).

10. The casting mold for bell furnace accessories according to claim 1, characterized in that: The telescopic push rod (106) is a hydraulic push rod or a ball screw type electric push rod, and an auxiliary bracket (102) for enhancing structural strength is fixedly installed between the support plate (101) and the connecting column (104).

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