Static pressure molding production process with jacket cooling function

Abstract

The method comprises the following steps that a static pressure molding casting line produces a sand mold contained in a sand box, the sand mold is conveyed to a pouring line to be subjected to molten iron pouring operation, the sand box containing a casting is obtained, then the sand box is conveyed to a sand box cooling line through a sand box conveying mechanism to be cooled in a walking mode, and then the sand box is conveyed to a return line through the sand box conveying mechanism; the sand box grabbing and transferring mechanism transfers a sand box to the first barrel box machine, molding sand and a casting in the sand box are pushed upwards into the pouring jacket, the pouring jacket containing the casting is transferred to the pouring jacket conveying line through the first pouring jacket grabbing and transferring mechanism, then the pouring jacket is transferred to the pouring jacket cooling line through the pouring jacket transferring mechanism, and after cooling is completed, the pouring jacket is conveyed to the second barrel box machine. And then the pouring jacket is transferred to a second-stage box puncher assembly on the pouring jacket conveying line, the pouring jacket is transferred to the bottom of the first sweeping mechanism through a second pouring jacket grabbing and transferring mechanism, and the shakeout piece taking operation is completed. According to the process steps, on the premise that the size of the occupied space of the whole device is kept unchanged, the cooling walking distance is effectively increased, the cooling amplitude is improved, and the production input cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of static pressure molding casting production technology, in particular to a static pressure molding production technology with a casing cooling function. Background Art

[0002] The static pressure casting production line is a casting equipment for making auto parts, pipe fittings, manhole covers, textile machinery parts and machine tool parts. The existing static pressure casting production line production process is mostly to make sand molds in the sand box. After the box is assembled and poured, the sand box containing the casting is moved to the cooling line for walking and cooling. After cooling to the specified temperature, the sand box is moved to the specified sand dropping station to complete the subsequent sand dropping and picking. The cooling range of the casting is directly related to the length of the cooling line. The longer the cooling line, the longer the walking distance of the sand box, and the greater the cooling range of the casting in the sand box. For castings with higher cooling requirements, longer cooling lines are usually required, but longer cooling lines will use a larger floor space, which not only affects the overall layout of the production line, but also increases the production input cost. Summary of the invention

[0003] The purpose of the present invention is to provide a static pressure molding production process with a casing cooling function, which adopts a double cooling cycle process of sand box cooling and casing cooling. While effectively extending the cooling range of the casting, it will not occupy a larger area, thereby solving the problems in the prior art.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a static pressure molding production process with a casing cooling function, comprising the following steps: ① the static pressure molding casting line produces a sand mold contained in a sand box, and transports it to a pouring line for pouring molten iron to obtain a sand box containing castings; ② the sand box containing castings on the pouring line moves to the end in the length direction, and is transferred to one end position of the sand box cooling line through a sand box transfer mechanism; ③ the sand box walks on the sand box cooling line to cool down to the other end of the cooling line, and is transferred to the return line through the sand box transfer mechanism; ④ the sand box walks on the return line to a first-level box-poking machine assembly, and when the sand box is located at the bottom position of the sand box grabbing and transferring mechanism, the sand box grabbing and transferring mechanism transfers the sand box to the first barrel box machine that pushes upward; ⑤ the first barrel box machine moves to push the molding sand and castings in the sand box upward into the casing, and through the first casing grabbing and transferring mechanism The mechanism transfers the casing containing castings to the casing conveyor line; ⑥ The casing on the casing conveyor line moves to the end away from the first-level box-poking machine assembly, and is transferred to one end of the casing cooling line through the casing transfer mechanism; ⑦ The casing walks on the casing cooling line to cool down to the other end of the cooling line, and is transferred to the casing conveyor line close to the first-level box-poking machine assembly through the casing transfer mechanism; ⑧ The casing moves on the casing conveyor line to the second-level box-poking machine assembly. When the casing containing castings is located in the second casing grabbing and transferring mechanism, the second casing grabbing and transferring mechanism transfers the casing to the first cleaning mechanism that pushes downward; ⑨ The casing located at the lower part of the first cleaning mechanism, the castings inside fall onto the casting conveyor under the action of gravity. After the castings fall, the first cleaning mechanism acts to sweep the floating sand on the inner wall of the casing downward to the casting conveyor. The casting conveyor transfers the castings to other processes to complete the sand dropping and picking up. After pushing the molding sand and castings in the sand box upward into the sleeve box in step ⑤, the following operations are also performed: if the castings in the sleeve box need to extend the cooling time, the first sleeve box grabbing and transferring mechanism transfers the sleeve box containing the castings to the sleeve box conveyor line, and performs subsequent cooling operations; if the castings in the sleeve box do not need to extend the cooling time, the first sleeve box grabbing and transferring mechanism transfers the sleeve box containing the castings to the bottom of the second cleaning mechanism at the end of the first-level box-poking machine assembly, and the castings inside the sleeve box fall onto the casting conveyor under the action of gravity. After the castings fall, the second cleaning mechanism is activated to clean the floating sand on the inner wall of the sleeve box downward onto the casting conveyor, completing the sand removal. The pouring line and the return line are arranged in the same line, the sand box cooling line and the sleeve box cooling line are arranged vertically in layers, the sleeve box cooling line is located on the upper side of the sand box cooling line, wherein the sleeve box conveyor line is located on the upper layer of the box-poking machine assembly, and the pouring line and the return line are both located on the lower layer of the box-poking machine assembly.Sand box transfer mechanisms are installed between the pouring line and the sand box cooling line, and between the return line and the sand box cooling line. The sand box transfer mechanisms are located at both ends of the length direction of the sand box cooling line. The casing conveying line and the casing cooling line are both installed between the two ends in the length direction. The first-level box-poking machine assembly spans the return line, the casing conveying line and the casting conveyor, and the second-level box-poking machine assembly spans the casing conveying line and the casting conveyor. The sand box cooling line includes several conveying lines arranged side by side. The sand box transfer mechanism can transfer the sand box to each conveying line respectively, and the sand box can move and cool down in each conveying line. The casing cooling line includes several conveying lines arranged side by side. The casing transfer mechanism can transfer the casing on the casing conveying line to each conveying line respectively, and the casing can move and cool down in each conveying line.

[0005] The positive effect of the present invention is that the static pressure molding production process with casing cooling function described in the present invention comprises the following steps: the static pressure molding casting line produces sand molds contained in the sand box and conveys them to the pouring line for pouring molten iron to obtain the sand box containing the castings, and then the sand box is transferred to the sand box cooling line for walking and cooling through the sand box transfer mechanism, and then transferred to the return line through the sand box transfer mechanism, the sand box grabbing and transferring mechanism transfers the sand box to the first barrel box machine, pushes the molding sand and castings inside the sand box upward into the casing, and transfers the casing containing the castings to the casing conveying line through the first casing grabbing and transferring mechanism, and then transfers the casing to the casing cooling line through the casing transfer mechanism, and after the cooling is completed, it is transferred to the secondary box poking machine assembly on the casing conveying line, and the casing is transferred to the bottom of the first cleaning mechanism through the second casing grabbing and transferring mechanism to complete the sand dropping and picking operation. The above process steps include an upper and lower layer double cooling cycle process of sand box cooling and jacket box cooling, which can effectively increase the cooling distance, improve the temperature reduction range and reduce the production investment cost while keeping the overall device footprint unchanged. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a schematic diagram of the structure of the overall device for implementing the process of the present invention; Figure 2 yes Figure 1 A schematic diagram of the structure at the lower level in the structure; Figure 3 yes Figure 1 Schematic diagram of the structure at the upper level of the structure; Figure 4 yes Figure 1 The structural diagram of the middle-level box-poking machine assembly; Figure 5 yes Figure 1 Schematic diagram of the structure of the middle and second stage box-poking machine assembly. DETAILED DESCRIPTION

[0007] The static pressure molding production process with casing cooling function described in the present invention comprises the following steps: ① The static pressure casting line 1 produces a sand mold in a sand box, which is then transported to the pouring line 2 for pouring molten iron to obtain a sand box containing castings; ② The sand box with the casting on the pouring line 2 moves to the end in the length direction and is transferred to one end position on the sand box cooling line 4 through the sand box transfer mechanism 3; ③ The sand box moves on the sand box cooling line 4 to cool down to the other end of the cooling line, and is transferred to the return line 5 through the sand box transfer mechanism 3; ④ The sand box moves on the return line 5 to the first-stage box-pushing machine assembly. When the sand box is located at the bottom position of the sand box grabbing and transferring mechanism 6, the sand box grabbing and transferring mechanism 6 transfers the sand box to the first box-pushing machine 7 that is pushed upward; ⑤ The first barrel box machine 7 moves to push the molding sand and castings in the sand box upward into the sleeve box, and the sleeve box containing the castings is transferred to the sleeve box conveyor line 9 through the first sleeve box grabbing and transferring mechanism 8; ⑥ The casing on the casing conveying line 9 moves to the end away from the first-stage casing piercing machine assembly, and is transferred to one end position on the casing cooling line 11 through the casing transfer mechanism 10; ⑦ The casing travels on the casing cooling line 11 to cool down to the other end of the cooling line, and is transferred to the casing conveying line 9 near the first-level casing machine assembly through the casing transfer mechanism 10; ⑧ The casing moves on the casing conveyor line 9 to the secondary casing assembly. When the casing containing the casting is located in the second casing grabbing and transferring mechanism 12, the second casing grabbing and transferring mechanism 12 transfers the casing to the first cleaning mechanism 13 which pushes downward; ⑨ The casing located at the lower part of the first cleaning mechanism 13, the castings inside fall onto the casting conveyor 14 under the action of gravity. After the castings fall, the first cleaning mechanism 13 operates to clean the floating sand on the inner wall of the casing downward to the casting conveyor 14. The casting conveyor 14 transfers the castings to other processes to complete the sand removal.

[0008] The above process steps are suitable for castings with large temperature reduction requirements, which need to be cooled down on the two cooling lines of the sand box cooling line 4 and the sleeve box cooling line 11 in sequence. If the castings have a small temperature reduction requirement, they will reach the cooling temperature after walking on the sand box cooling line 4, and there is no need to transfer them to the sleeve box cooling line 11 for cooling. To achieve the above purpose, the device can be used for castings with different temperature reduction ranges. After pushing the sand and castings in the sand box upward into the sleeve box in step ⑤, the following operations are performed: If the castings in the casing need to extend the cooling time, the first casing grabbing and transferring mechanism 8 will transfer the casing containing the castings to the casing conveyor line 9, and perform subsequent cooling operations. If the castings in the casing do not need to extend the cooling time, the first casing grabbing and transferring mechanism 8 will transfer the casing containing the castings to the bottom of the second cleaning mechanism 15 at the end of the first-level box-poking machine assembly, and the castings inside the casing will fall onto the casting conveyor 14 under the action of gravity. After the castings fall, the second cleaning mechanism 15 will start to clean the floating sand on the inner wall of the casing downward to the casting conveyor 14, completing the sand removal.

[0009] In order to make the arrangement of the two cooling lines, the sand box cooling line 4 and the sleeve box cooling line 11, more reasonable and not occupying extra space, and to facilitate the transfer of castings on various conveyor lines, the pouring line 2 and the return line 5 are arranged in the same line, and the sand box after the sand removal is completed can enter the static pressure molding casting line 1, so as to facilitate the next molding sand production, box assembly and pouring. The sand box cooling line 4 and the sleeve box cooling line 11 are arranged in layers vertically, and the sleeve box cooling line 11 is located on the upper side of the sand box cooling line 4, wherein the sleeve box conveyor line 9 is located on the upper layer of the box-poking machine assembly, and the pouring line 2 and the return line 5 are both located on the lower layer of the box-poking machine assembly. The two cooling lines arranged in the upper and lower layers reduce the footprint of the overall device while ensuring the length of the cooling line, and reduce the production investment cost while ensuring the normal cooling of the castings.

[0010] In order to transfer the sand box or casing box filled with sand gradually between the cooling lines and the conveying lines, a sand box transfer mechanism 3 is installed between the pouring line 2 and the sand box cooling line 4, and between the return line 5 and the sand box cooling line 4. The sand box transfer mechanism 3 is located at both ends of the length direction of the sand box cooling line 4. A casing transfer mechanism 10 is installed between both ends of the casing conveying line 9 and the casing cooling line 11 in the length direction.

[0011] The first-stage box-poking machine assembly spans the return line 5, the box-sleeving conveying line 9 and the casting conveyor 14, and the first-stage box-poking machine assembly can realize the transfer of castings between the return line 5 and the box-sleeving conveying line 9 or between the return line 5 and the casting conveyor 14. The second-stage box-poking machine assembly spans the box-sleeving conveying line 9 and the casting conveyor 14, and the second-stage box-poking machine assembly can realize the transfer of castings between the box-sleeving conveying line 9 and the casting conveyor 14.

[0012] Furthermore, in order to allow the sand box containing the casting to be cooled in multiple threads on the sand box cooling line 4, the sand box cooling line 4 includes a plurality of conveyor lines arranged side by side, and the sand box transfer mechanism 3 can transfer the sand box to each conveyor line respectively, and the sand box can move and cool down in each conveyor line. In order to allow the casing containing the casting to be cooled in multiple threads on the casing cooling line 11, the casing cooling line 11 includes a plurality of conveyor lines arranged side by side, and the casing transfer mechanism 10 can transfer the casing on the casing conveyor line 9 to each conveyor line respectively, and the casing can move and cool down in each conveyor line.

[0013] The static pressure molding casting line 1 includes a sand box component, and the sand box is used to hold the sand mold and castings. The function of the pouring line 2 is to pour molten iron into the sand box after molding. The sand box poured by the pouring line 2 is the sand box containing the castings. The sand box transfer mechanism 3 can be an existing transfer equipment, or it can include two sand box transfer vehicles and a cooling storage mechanism. The transfer operation of the sand box is realized through the mutual cooperation of the above three devices. The function of the return line 5 is to transport the sand box that has completed cooling in the cooling line to the box-poking machine, waiting for the box-poking operation. The main function of the cleaning mechanism is to clean the floating sand on the inner wall of the casing, and it has the function of assisting the box-poking and discharging.

[0014] The technical solution of the present invention is not limited to the scope of the embodiments described in the present invention. The technical contents not described in detail in the present invention are all well-known technologies.

Claims

1. A static pressure molding production process with a casing cooling function, characterized in that: The following steps are included: ① The static pressure casting line (1) produces a sand mold contained in a sand box, and transports it to the pouring line (2) for pouring molten iron to obtain a sand box containing a casting; ② The sand box with the casting on the pouring line (2) moves to the end in the length direction and is transferred to one end position on the sand box cooling line (4) through the sand box transfer mechanism (3); ③ The sand box moves along the sand box cooling line (4) to cool down to the other end of the cooling line, and is transferred to the return line (5) through the sand box transfer mechanism (3); ④ The sand box moves on the return line (5) to the first-stage box-pushing machine assembly. When the sand box is located at the bottom position of the sand box grabbing and transferring mechanism (6), the sand box grabbing and transferring mechanism (6) transfers the sand box to the first box-pushing machine (7) that pushes upward; ⑤ The first barrel box machine (7) moves to push the molding sand and castings in the sand box upward into the casing, and the casing containing the castings is transferred to the casing conveyor line (9) through the first casing grabbing and transferring mechanism (8); ⑥ The casing on the casing conveying line (9) moves to an end away from the first-stage casing-poking machine assembly and is transferred to an end position on the casing cooling line (11) through the casing transfer mechanism (10); ⑦ The casing travels on the casing cooling line (11) to cool down to the other end of the cooling line, and is then transferred to the casing conveying line (9) near the first-stage casing machine assembly by the casing transfer mechanism (10); ⑧ The casing moves on the casing conveyor line (9) to the secondary casing assembly. When the casing containing the castings is located in the second casing grabbing and transferring mechanism (12), the second casing grabbing and transferring mechanism (12) transfers the casing to the first cleaning mechanism (13) that pushes out downwards. ⑨ The casing located below the first cleaning mechanism (13) has castings inside that fall onto the casting conveyor (14) under the action of gravity. After the castings fall, the first cleaning mechanism (13) operates to clean the floating sand on the inner wall of the casing downward onto the casting conveyor (14). The casting conveyor (14) transfers the castings to other processes, thereby completing the sand removal process.

2. The static pressure molding production process with casing cooling function according to claim 1 is characterized in that: After the molding sand and castings in the sand box are pushed upward into the casing in step ⑤, the following operations are performed: if the castings in the casing need to extend the cooling time, the first casing grabbing and transferring mechanism (8) transfers the casing containing the castings to the casing conveyor line (9) and performs subsequent cooling operations; if the castings in the casing do not need to extend the cooling time, the first casing grabbing and transferring mechanism (8) transfers the casing containing the castings to the bottom of the second cleaning mechanism (15) at the end of the first-stage box-poking machine assembly, and the castings inside the casing fall onto the casting conveyor (14) under the action of gravity. After the castings fall, the second cleaning mechanism (15) is activated to clean the floating sand on the inner wall of the casing downward onto the casting conveyor (14), completing the sand dropping and removing of the castings.

3. The static pressure molding production process with casing cooling function according to claim 1 is characterized in that: The pouring line (2) and the return line (5) are arranged in a colinear manner, the sand box cooling line (4) and the casing cooling line (11) are arranged in layers vertically, the casing cooling line (11) is located on the upper side of the sand box cooling line (4), wherein the casing conveying line (9) is located on the upper layer of the casing machine assembly, and the pouring line (2) and the return line (5) are both located on the lower layer of the casing machine assembly.

4. The static pressure molding production process with casing cooling function according to claim 1 is characterized in that: A sand box transfer mechanism (3) is installed between the pouring line (2) and the sand box cooling line (4), and between the return line (5) and the sand box cooling line (4). The sand box transfer mechanism (3) is located at both ends of the sand box cooling line (4) in the length direction. A casing conveying line (9) and a casing cooling line (11) are installed between both ends in the length direction. The first-stage casing machine assembly spans the return line (5), the casing conveying line (9) and the casting conveyor (14), and the second-stage casing machine assembly spans the casing conveying line (9) and the casting conveyor (14).

5. The static pressure molding production process with casing cooling function according to claim 1 is characterized in that: The sand box cooling line (4) includes a plurality of conveyor lines arranged side by side, and the sand box transfer mechanism (3) can transfer the sand boxes to each conveyor line respectively, and the sand boxes can move and cool down in each conveyor line. The casing cooling line (11) includes a plurality of conveyor lines arranged side by side, and the casing transfer mechanism (10) can transfer the casings on the casing conveyor line (9) to each conveyor line respectively, and the casings can move and cool down in each conveyor line.

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