Mother-son sand mixer and molding work part

Abstract

The primary and secondary sand mixer comprises a primary sand mixer and a secondary sand mixer, and the primary sand mixer and the secondary sand mixer are arranged side by side in a back-to-back mode. The son sand mixer is in butt joint with a first station, the mother sand mixer is in butt joint with a second station and a third station, and the first station, the second station and the third station are arranged triangularly; by arranging the son sand mixer and the mother sand mixer side by side and back to back, two groups of sand mixers can be integrated, and the first station, the second station and the third station can also be integrated, so that the space utilization is optimized, the compact layout is realized, and the efficient utilization of the plant space is facilitated; the three working stations are adjacently arranged, so that the corresponding working lines can be integrated and tightly arranged; the sand handling capacity of the master sand mixer is larger than that of the slave sand mixer, the two sets of sand mixers can achieve sand filling needed by castings of different types and specifications on the corresponding working stations, production lines are richer, and the treatment efficiency can be optimized through targeted design.

Description

Technical Field

[0001] The present application relates to the field of casting manufacturing, in particular to a mother-child sand mixer and a molding department. Background Art

[0002] Sand mixing and molding is an important process in the casting manufacturing process. The sand mixer is used to mix specific sand and liquid materials to obtain molding sand that is easy to shape and can accept metal solution pouring. The molding sand is filled into the sand box and filled into a preset shape to obtain a sand core or sand mold.

[0003] When casting castings of different materials, sizes, and complexities, it is usually necessary to use molding sand of different materials and proportions. When replacing molding sand, if there is only a single sand mixer in the factory, it is necessary to first empty the previous batch of molding sand and then re-mix the sand, which is time-consuming and labor-intensive. When multiple sand mixers are arranged in a general factory, each sand mixer is placed separately according to the location of the production line. The production line often occupies a very large area, and a large number of transfer lines are required to realize the circulation of sand filling to downstream products. Summary of the invention

[0004] The purpose of the present application is to overcome the deficiencies in the prior art and to provide a mother-and-child sand mixer and a molding unit.

[0005] In order to achieve the above technical objectives, the present application provides a mother-and-child sand mixer, comprising: a sub-sand mixer, used to connect to a first workstation and fill sand; a mother sand mixer, arranged side by side and back to back with the sub-sand mixer, used to connect to a second workstation and a third workstation and fill sand; wherein the first workstation, the second workstation and the third workstation are arranged in a triangle; the sand processing capacity of the mother sand mixer is greater than that of the sub-sand mixer.

[0006] Furthermore, the sub-sand mixer includes: a first conveying arm, used to convey material sand and liquid; a first stirring cage, connected to the first conveying arm, used to receive and stir the material sand and liquid to obtain and output molding sand; wherein the first stirring cage is rotatably arranged on the first conveying arm, and the position of the molding sand output by the first stirring cage can be adjusted by rotation.

[0007] Furthermore, the mother sand mixer includes: a second conveying arm, used to convey material sand and liquid; a second stirring cage, connected to the second conveying arm; a third stirring cage, connected to the second conveying arm; wherein the second stirring cage and the third stirring cage can both receive and stir material sand and liquid to obtain molding sand; the second stirring cage is rotatably disposed on the second conveying arm; the third stirring cage is rotatably disposed on the second stirring cage.

[0008] Furthermore, the mother sand mixer also includes: a rotary drive mechanism for driving the second conveying arm to rotate horizontally to adjust the output position of the molding sand; and / or a swing drive mechanism for driving the second conveying arm to swing vertically to adjust the output height of the molding sand.

[0009] Furthermore, a vibration platform is provided at the first workstation, the second workstation and / or the third workstation. The vibration platform is used to receive the sand box to be filled with sand and can vibrate the sand box to facilitate compaction of the molding sand in the sand box.

[0010] Furthermore, the parent and child sand mixer also includes a silo, which is used to store sand and / or liquid material to facilitate the supply of the parent and child sand mixers.

[0011] The present application also provides a molding section, including the above-mentioned mother-and-child sand mixer, and also includes: a core making line, which is connected to the first workstation and can transport core making molds and sand boxes to the first workstation to facilitate the mother sand mixer to prepare sand cores; a molding line, which is connected to the second workstation and can transport molding molds and sand boxes to the second workstation to facilitate the mother sand mixer to prepare sand molds.

[0012] Furthermore, the core making line comprises a plurality of motorized rollers, and the plurality of motorized rollers are connected end to end and arranged in a ring shape.

[0013] Furthermore, the molding line includes: an assembly section, which is located upstream of the second station and is used for assembling the base plate, the sand box and the mold to obtain a sand box to be filled with sand; a hardening section, which is located downstream of the second station and is used for storing the sand box after being filled with sand; and a demolding section, which is located downstream of the hardening section and is used for flipping the sand box to facilitate taking out the hardened sand mold.

[0014] Furthermore, the molding department also includes a three-dimensional warehouse, which is connected to the core making line and the molding line for intelligent storage of materials.

[0015] The present application provides a sub-sand mixer and a molding section, comprising a sub-sand mixer and a mother sand mixer, which are arranged side by side and back to back; the sub-sand mixer is connected to the first station, and the mother sand mixer is connected to the second station and the third station, and the first station, the second station and the third station are arranged in a triangle; by arranging the sub-sand mixer and the mother sand mixer side by side and back to back, it is possible to integrate two groups of sand mixers and the first station, the second station and the third station, thereby optimizing the use of space and achieving a compact layout, which is conducive to the efficient use of factory space; since the three work stations are arranged adjacent to each other, the corresponding work lines can also be integrated and arranged compactly, so that the need for arranging the transfer line can be reduced, and the sand boxes that have completed the sand filling at the first station, the second station and the third station can also be output on the same path, thereby simplifying the circulation of the filled sand to the downstream; the sand processing capacity of the mother sand mixer is greater than the sand processing capacity of the sub-sand mixer, and the two groups of sand mixers can realize the sand filling required for castings of different types and specifications at the corresponding work stations, and the production lines are more abundant, and the processing efficiency can be optimized through targeted design. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural schematic diagram of a molding part provided for this application;

[0017] Figure 2 for Figure 1 The structural schematic diagram of the mother-child sand mixer in the molding section is shown. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0019] The present application provides a mother-and-child sand mixer, comprising: a mother-and-child sand mixer 10, used to connect to a first workstation and fill sand; a mother-and-child sand mixer 20, arranged side by side and back to back with the mother-and-child sand mixer 10, used to connect to a second workstation and a third workstation and fill sand; wherein the first workstation, the second workstation and the third workstation are arranged in a triangle; the sand processing capacity of the mother-and-child sand mixer 20 is greater than that of the mother-and-child sand mixer 10.

[0020] For details, please refer to Figure 1 and Figure 2 In the illustrated embodiment, the sub-sand mixer 10 and the main sand mixer 20 are arranged side by side in the left-right direction; the first station A is arranged on the left side of the sub-sand mixer 10, and the sub-sand mixer 10 is arranged facing the left side; the second station B is arranged on the right side of the main sand mixer 20, and the third station C is arranged on the upper side of the main sand mixer 20, and the main sand mixer 20 is arranged facing the right side, and the arm movement range of the main sand mixer 20 can cover the second station and the third station.

[0021] Continue to refer to Figure 1 In the illustrated embodiment, the first station A is arranged on the arm movable covering side of the sub-sand mixer 10 and docked with an operation line (such as the core making line 50 described below), which can facilitate the input of materials such as sand boxes and models, as well as the output of sand boxes after filling with sand. The second station B is arranged on the arm movable covering side of the mother sand mixer 20 relative to the first station A and docked with another operation line (such as the molding line 60 described below), which can facilitate the input of corresponding sand boxes, models and other materials, as well as the output of sand boxes after filling with sand; the third station C is arranged between the two operation lines, and the upper side of the third station C is open and has a large space, which can be used for the circulation of large materials related to super-large castings.

[0022] Optionally, the second workstation B is arranged adjacent to the third workstation C.

[0023] For example, Figure 1 In the illustrated embodiment, the third station C is arranged on the upper side of the sub-sand mixer 10 and the main sand mixer 20, between the first station A and the second station B, and the second station B is adjacent to the third station C and arranged on the upper right side of the main sand mixer 20. With such arrangement, the output end of the main sand mixer 20 can change the station for sand filling by moving a short distance, which is conducive to improving work efficiency.

[0024] The first station A, the second station B and the third station C are arranged in a triangle, which can fully utilize the surrounding space of the sub-sand mixer 10 and the main sand mixer 20, and is conducive to the dense arrangement of the production line.

[0025] J Combined with reference Figure 2 In the illustrated embodiment, the configuration of the sub-sand mixer 10 is smaller than that of the main sand mixer 20. The sand processing capacity of the sub-sand mixer 10 is small, and the first station A is mainly used for sand filling and molding of sand cores and small and medium-sized castings. The sand processing capacity of the main sand mixer 20 is large, and the second station B is mainly used for sand filling and molding of large castings, and the third station C is mainly used for sand filling and molding of super-large castings.

[0026] It should be explained that, generally speaking, factories mainly produce small and medium-sized castings and large castings, therefore, the first station A and the second station B are arranged on the left and right sides of the sub-sand mixer 10 and the main sand mixer 20, and the corresponding operation line can be arranged more perfectly. Generally speaking, the demand for producing super-large castings in factories is relatively small, therefore, the third station C is reserved on the upper side of the sub-sand mixer 10 and the main sand mixer 20, and it can be used or not as needed; in addition, the upper side of the third station C is open, which is more convenient for super-large castings to operate independently.

[0027] In summary, by arranging the sub-sand mixer 10 and the main sand mixer 20 side by side and back to back, it is possible to integrate two groups of sand mixers and the first station A, the second station B and the third station C, thereby optimizing the use of space and achieving a compact layout, which is conducive to the efficient use of plant space. At the same time, since the three work stations are arranged adjacent to each other, the corresponding work lines can also be integrated and arranged closely, so that the need for the layout of the transfer line can be reduced, and the sand boxes filled with sand at the first station A, the second station B and the third station C can also be output on the same path, thereby simplifying the flow of filled sand to the downstream.

[0028] In one embodiment, the sub-sand mixer 10 includes: a first conveying arm 11 for conveying material sand and material liquid; a first stirring cage 12 connected to the first conveying arm 11, for receiving and stirring the material sand and material liquid to obtain and output molding sand.

[0029] For details, please refer to Figure 2In the illustrated embodiment, the first conveying arm 11 is disposed on the ground and is a supporting portion of the sub-sand mixer 10. The first conveying arm 11 extends upwardly and obliquely toward the first station A, and the first stirring cage 12 is disposed at the raised end of the first conveying arm 11 and can deliver sand to the first station A from top to bottom.

[0030] Furthermore, the first conveying arm 11 includes an arm tube, and a conveying mechanism (such as a conveyor belt) is arranged in the arm tube. When filling sand, the material sand and the material liquid are input into the arm tube, and after receiving the material sand and the material liquid, the conveying mechanism can convey the material sand and the material liquid to the first stirring cage 12.

[0031] When the arm is tilted toward the first station A, the conveying mechanism is tilted along the extension direction of the arm and also toward the first station A. At this time, the material conveyed forward by the conveying mechanism climbs the conveying mechanism, which is conducive to controlling the travel speed of the material, and then controlling the conveying speed and output of the material.

[0032] Optionally, the conveying mechanism adopts a spiral stirrer; the spiral stirrer includes a main shaft and stirring blades, the main shaft is rotatably arranged in the arm tube, and a plurality of stirring blades are arranged on the main shaft along the spiral direction. When filling sand, the main shaft rotates, driving the stirring blades to rotate; after the material sand and material liquid enter the arm tube, they are acted on by the stirring blades and stirred for the first time; the spiral stirrer can not only promote the mixing of the material sand and material liquid, but also transport the material forward by spiral feeding.

[0033] Furthermore, the first mixing cage 12 includes a mixing cage drum and a stirring paddle, the mixing cage drum is connected to the arm drum of the first conveying arm 11, and the stirring paddle is rotatably arranged in the mixing cage drum. When filling sand, the first conveying arm 11 delivers the material sand and the material liquid into the mixing cage drum, the stirring paddle rotates, mixes the material sand and the material liquid, and the mixed molding sand is output from the mixing cage drum and delivered to the first station A.

[0034] Optionally, the first stirring cage 12 is rotatably disposed on the first conveying arm 11, and the position where the first stirring cage 12 outputs the molding sand can be adjusted by rotation.

[0035] For details, please refer to Figure 2 In the illustrated embodiment, the first agitator 12 is rotatably disposed at the lower side of the raised end of the first conveying arm 11 through a bearing. The first agitator 12 can rotate around the bearing, and the rotation axis of the first agitator 12 is perpendicular to the first conveying arm 11. When filling sand, the first agitator 12 is rotated and changed, and the output position of the first agitator 12 can be adjusted, thereby facilitating the sub-sand mixer 10 to fully fill the first station A with sand.

[0036] Optionally, the first conveying arm 11 can rotate horizontally.

[0037] For example, Figure 2In the embodiment shown, the first conveying arm 11 is tilted, the first stirring cage 12 is arranged at the raised end, and the lower end is rotatably arranged on the ground, and the rotation axis of the first conveying arm 11 is perpendicular to the ground. The first conveying arm 11 makes horizontal rotational movement, and the output position of the first stirring cage 12 can be adjusted quickly and with a large stroke; further, with the rotation of the first stirring cage 12, the sand output range of the sub-sand mixer 10 can be increased and the sand filling accuracy of the sub-sand mixer 10 can be improved.

[0038] Optionally, the first conveying arm 11 can swing up and down.

[0039] For example, Figure 2 In the embodiment shown, the first conveying arm 11 is tilted, and its raised end can swing up and down. By swinging the first conveying arm 11 up and down, the height of the first mixing cage 12 outputting the molding sand can be adjusted, so that the sub-sand mixer 10 can be adapted to sand boxes of different heights. The first conveying arm 11 can also be fine-tuned by swinging it up and down. The position of the first mixing cage 12 outputting the molding sand can further ensure the accuracy and comprehensiveness of the sand filling.

[0040] In one embodiment, the primary sand mixer 20 includes: a second conveying arm 21 for conveying material sand and material liquid; a second stirring cage 22 connected to the second conveying arm 21; a third stirring cage 23 connected to the second conveying arm 21;

[0041] The second stirring cage 22 and the third stirring cage 23 are both capable of receiving and stirring the material sand and the material liquid to obtain the molding sand.

[0042] The structure of the second conveying arm 21 is similar to that of the first conveying arm 11, and will not be described in detail. The structures of the second stirring cage 22 and the third stirring cage 23 are similar to those of the first stirring cage 12, and will not be described in detail.

[0043] Different from the sub-sand mixer 10 described above, in this embodiment, the main sand mixer 20 includes two groups of mixing cages. In one embodiment, the two groups of mixing cages are connected in sequence. The sand and liquid are first transported by the second transport arm 21 into the second mixing cage 22 and stirred by the first mixing cage. After passing through the second mixing cage 22, the mixed material enters the third mixing cage 23 and stirs by the second mixing cage. Adding mixing cages and connecting multiple groups of mixing cages in sequence can increase the mixing path of the sand and liquid and prolong the mixing time of the sand and liquid, thereby ensuring the mixing effect.

[0044] In another embodiment, the second mixing cage 22 and the third mixing cage 23 are both connected to the second conveying arm 21, and can independently mix and deliver sand. At this time, the second mixing cage 22 and the third mixing cage 23 are both provided with a discharge port, and the material sand and the material liquid enter one of the mixing cages, are mixed and stirred to become the molding sand that meets the requirements, and can be discharged through the discharge port of the mixing cage. With such a configuration, the two groups of mixing cages can be used to mix different molding sands to meet more diverse sand mixing needs; the two groups of mixing cages can also work at the same time, compensate each other, and cooperate to fill sand at the same workstation, or fill sand at different workstations; the two groups of mixing cages can also work separately to meet the sand filling needs of different stages and different workstations.

[0045] Optionally, when the second mixing cage 22 and the third mixing cage 23 are independently mixed, the feed ports of the two mixing cages are provided with valves that can be opened and closed. When only one of the second mixing cage 22 and the third mixing cage 23 is required to mix the sand, the valve of the other one is closed to avoid mutual interference between the two mixing cages, thereby ensuring the flow speed and flow direction of the material sand and the material liquid.

[0046] Optionally, the sand processing capacity of the second agitation cage 22 is greater than the sand processing capacity of the third agitation cage 23.

[0047] For details, please refer to Figure 2 In the illustrated embodiment, the second mixing cage 22 is arranged at the lower side of the raised end of the second conveying arm 21, and the third mixing cage 23 is arranged at the lower side of the second mixing cage 22. The mixing cage barrel of the second mixing cage 22 is larger than the mixing cage barrel of the third mixing cage 23. The second mixing cage 22 has a larger configuration, which can increase the sand processing capacity of the second mixing cage 22, and is also conducive to the second mixing cage 22 supporting the third mixing cage 23 and ensuring the structural stability and reliability of the mother sand mixer 20. The sand processing capacity of the two groups of mixing cages is different, which is more convenient for the mixing cages to work in a targeted manner or for the two groups of mixing cages to work in coordination.

[0048] In a specific embodiment, the sand processing capacity of the second agitator 22 is 40 T / h, and the sand processing capacity of the third agitator 23 is 3 T / h.

[0049] Optionally, the second stirring cage 22 is rotatably disposed on the second conveying arm 21 .

[0050] For details, please refer to Figure 2 In the illustrated embodiment, the upper left end of the second stirring cage 22 is rotatably connected to the raised end of the second conveying arm 21 through a bearing, and the right end extends toward the second station and the third station. When filling sand, the second stirring cage 22 is rotated and changed direction, and the position of the second stirring cage 22 outputting molding sand can be adjusted, so that the second stirring cage 22 can fully fill the second station and the third station with sand.

[0051] Optionally, the third stirring cage 23 is rotatably disposed on the second stirring cage 22 .

[0052] For details, please refer to Figure 2In the illustrated embodiment, the upper left end of the third stirring cage 23 is rotatably connected to the lower side of the second stirring cage 22 through a bearing, and the right end extends toward the second station and the third station. When filling sand, the third stirring cage 23 is rotated and changed direction, and the position of the third stirring cage 23 outputting molding sand can be adjusted, so that the third stirring cage 23 can fully fill the second station and the third station with sand.

[0053] The mixing cage can rotate, and the discharge port of the mixing cage can make a circular motion with the rotation axis of the mixing cage as the center of the circle, thereby adjusting the position of the molding sand output by the mother sand mixer 20. When the second mixing cage 22 and the third mixing cage 23 can rotate independently, and the circumferential paths of the discharge ports of the two are different, the two groups of mixing cages can also compensate for each other's sand discharge positions, achieving more efficient and comprehensive sand filling.

[0054] Optionally, the primary sand mixer 20 further includes a rotary drive mechanism 24 for driving the second conveying arm 21 to rotate horizontally so as to adjust the output position of the molding sand.

[0055] The rotary drive mechanism 24 may be a reduction motor, a motor, or the like.

[0056] Figure 2 In the illustrated embodiment, the second conveying arm 21 is tilted upward toward the second workstation and the third workstation, and the second stirring cage 22 and the third stirring cage 23 are arranged at the raised end of the second conveying arm 21; the rotary drive mechanism 24 is arranged on the ground, and the lower end of the second conveying arm 21 is connected to the rotary drive mechanism 24, and the rotary drive mechanism 24 can drive the second conveying arm 21 to rotate horizontally to adjust the output position of the second stirring cage 22 and the third stirring cage 23.

[0057] By rotating the drive mechanism 24, the second conveying arm 21 can make horizontal rotational movement, so that the position of the second stirring cage 22 and the third stirring cage 23 for outputting molding sand can be adjusted quickly and with a large stroke; further coordinating the rotation of the second stirring cage 22 and the third stirring cage 23 can increase the sand output range of the mother sand mixer 20, improve the sand output accuracy of the mother sand mixer 20, and ensure the comprehensiveness of the sand filling of the mother sand mixer 20.

[0058] Optionally, the primary sand mixer 20 further includes a swing driving mechanism 25 for driving the second conveying arm 21 to swing vertically, so as to adjust the output height of the molding sand.

[0059] The swing driving mechanism 25 may be a pneumatic cylinder, an oil cylinder or the like.

[0060] Figure 2In the illustrated embodiment, the fixed end of the swing drive mechanism 25 is rotatably disposed on the ground, and the movable end is rotatably connected to the second conveying arm 21; when the movable end of the swing drive mechanism 25 is extended, the second conveying arm 21 can be raised to facilitate the stirring cage to fill sand into a higher or closer sand box; when the movable end of the swing drive mechanism 25 is retracted, the second conveying arm 21 can be lowered to facilitate the stirring cage to fill sand into a lower or farther sand box.

[0061] By setting the swing drive mechanism 25, the first conveying arm 11 can swing up and down, so that the height of the second stirring cage 22 and the third stirring cage 23 outputting the molding sand can be adjusted, so that the mother sand mixer 20 can be adapted to sand boxes of different heights. The second conveying arm 21 can also be swung up and down to fine-tune the position of the second stirring cage 22 and the third stirring cage 23 outputting the molding sand, further ensuring the accuracy and comprehensiveness of the sand filling.

[0062] In other embodiments, the mother sand mixer 20 may be provided with only one group of mixing cages, or may be provided with three or even more groups of mixing cages, so as to meet more diverse sand filling needs.

[0063] Optionally, a vibration platform 30 is provided at the first workstation, the second workstation and / or the third workstation. The vibration platform 30 is used to receive a sand box to be filled with sand and to vibrate the sand box to compact the molding sand in the sand box.

[0064] It should be noted that, in order to facilitate the molding of the modeling sand, it is necessary to place the assembled sand box at the first station, the second station or the third station before filling the sand. In order to ensure that the sand core or sand mold formed by the sand filling is solid and reliable, it is necessary to ensure that the modeling sand filled into the sand box is in a compact state without large air gaps.

[0065] A vibration platform 30 is arranged on the work station, which can receive the sand box and make the molding sand inside the sand box fill the sand box tightly by vibrating the sand box.

[0066] Specifically, the vibration platform 30 includes a table portion for receiving the sand box and a vibration portion 32 for driving the table portion to vibrate back and forth; the vibration portion 32 can be a high-frequency vibrator; the table portion is set on a spring, and the vibration effect of the table portion can also be optimized. When filling sand, the vibration portion 32 works continuously, so that the table portion vibrates while receiving the filling sand; or the vibration portion 32 works intermittently, and after the sand box has received the molding sand for a period of time, the vibration portion 32 drives the table portion to vibrate, so that the molding sand newly filled into the sand box is vibrated and compacted.

[0067] In order to facilitate the vibration platform 30 to receive and output the sand box, in one embodiment, the vibration platform 30 includes: a conveying part 31 for receiving and conveying the sand box; and a vibration part 32 for driving the conveying part 31 to vibrate.

[0068] In this embodiment, the conveying part 31 can be a conveyor belt, a motorized roller, etc. At this time, the conveying part 31 can not only be used as a platform, stably receive the sand box, and provide a work station for filling the sand box with sand, but also can connect the upstream and downstream transfer mechanisms through its own transmission function, receive the sand box, and transmit the sand box to the work station of the sand mixer, and then actively output the sand box after completing the sand filling, thereby improving the automation of the entire line.

[0069] Optionally, the sub-sand mixer provided in the present application further includes a silo 40 , and the silo 40 is used to store liquid material and / or sand material to facilitate supply to the sub-sand mixer 10 and the main sand mixer 20 .

[0070] For details, please refer to Figure 2 In the illustrated embodiment, a silo 40 is provided above the sub-sand mixer 10 and the main sand mixer 20. The bottom of the silo 40 is arranged in a funnel shape. The discharge port of the silo 40 is arranged at the bottom and connected to the conveying arms of the sub-sand mixer 10 and the main sand mixer 20. The funnel-shaped structure can guide the materials in the silo 40 to converge toward the discharge port, and then guide the materials to flow toward the conveying arm. The main body of the silo 40 is arranged in a cylindrical shape to facilitate the storage of a large amount of materials. The cylindrical main body and the funnel-shaped bottom can reduce the corners, thereby preventing the materials from accumulating in the corners and being difficult to discharge.

[0071] Optionally, the discharge port of the silo 40 is provided with a quantitative feeding mechanism.

[0072] In one embodiment, the quantitative feeding mechanism is a quantitative valve.

[0073] Specifically, the metering valve is opened, and the material can flow into the sub-sand mixer 10 or the main sand mixer 20 through the discharge port of the silo 40. When the material flows out for a preset time or the outflow of the material reaches a preset value, the metering valve is closed, and the sub-sand mixer 10 or the main sand mixer 20 can mix the sand quantitatively.

[0074] In another embodiment, the quantitative feeding mechanism is a vibrating feeder.

[0075] Specifically, the material in the silo 40 can flow into the vibrating feeder; when the vibrating feeder is started, it can vibrate and feed the material, thereby driving the material to flow to the sub-sand mixer 10 or the main sand mixer 20; after vibrating for a preset time or feeding a preset amount of material, the vibrating feeder is turned off, and the sub-sand mixer 10 or the main sand mixer 20 can mix the sand quantitatively.

[0076] In yet another embodiment, the quantitative feeding mechanism is a screw feeder.

[0077] Specifically, the spiral feeder includes a barrel and a spiral blade, the spiral blade is rotatably arranged in the barrel, and the barrel is connected to the silo 40; the material in the silo 40 can enter the barrel; when the spiral feeder is started, the spiral blade rotates, which can promote the material in the silo 40 to be spirally fed to the sub-sand mixer 10 or the main sand mixer 20; after the spiral blade rotates for a preset time or feeds a preset amount of material, the spiral feeder is turned off, the spiral blade stops rotating, and the sub-sand mixer 10 or the main sand mixer 20 can perform quantitative sand mixing.

[0078] This application does not limit the specific configuration of the quantitative feeding mechanism.

[0079] The quantitative feeding mechanism can control the output of the silo 40 and thereby ensure the sand intake of the sub-sand mixer 10 or the main sand mixer 20 .

[0080] Optionally, the top of the silo 40 is available for workers to work on.

[0081] For details, please refer to Figure 2 In the illustrated embodiment, the top of the silo 40 is a large platform, and the feed inlet of the silo 40 is also arranged on the top thereof. Workers can add materials to the silo 40 with the feeding equipment at the top of the silo 40, and can also observe the storage conditions of the silo 40 at the top of the silo 40.

[0082] Optionally, a guardrail is provided on the top of the silo 40 .

[0083] When workers are working on the top of the silo 40, the guardrail can be used to protect the workers and prevent accidents such as falling.

[0084] Optionally, a ladder is provided on one side of the silo 40 .

[0085] Workers can enter and exit the top of the silo 40 by climbing a ladder.

[0086] Optionally, the silo 40 includes a plurality of storage chambers, and different storage chambers can store different types of sand or liquid.

[0087] For details, please refer to Figure 1 In the illustrated embodiment, the silo 40 has a plurality of storage chambers, each of which can store a type of sand or liquid material, which can achieve accurate classification and storage while also facilitating quick selection of required materials according to sand mixing needs.

[0088] The present application also provides a molding section, including the above-mentioned mother-and-child sand mixer, and also includes: a core making line 50, which is connected to the first workstation and can transport core making molds and sand boxes to the first workstation, so that the mother sand mixer 20 can prepare sand cores; a molding line 60, which is connected to the second workstation and can transport molding molds and sand boxes to the second workstation, so that the mother sand mixer 20 can prepare sand molds.

[0089] It needs to be explained that the sand core is used to construct the inner cavity of the casting, and the sand mold is used to construct the outer shape of the casting; before casting, the sand core will be assembled into the sand mold to form the required shape.

[0090] The present application integrates the sub-sand mixer 10 and the main sand mixer 20, so that the core making line 50 and the molding line 60 can be arranged close to each other, which not only realizes the unified preparation and fast transportation of molding sand, but also facilitates the subsequent storage, assembly and use of sand cores and sand molds.

[0091] If necessary, the molding line 60 can also be connected to the third station to simultaneously realize the relevant material transportation of large and super-large castings.

[0092] Specifically, the core making line 50 includes a work station for assembling a base plate, an empty sand box and a specific mold. After the assembly is completed, the core making line 50 can also transport the sand box to be filled with sand to the first work station so that the sub-sand mixer 10 can fill the sand box with sand; after the sand filling is completed, the core making line 50 can also transport the sand box away so that the sand box can be left to stand and the sand mold can harden.

[0093] The assembly of the empty sand box and the specific mold can be achieved by manual participation or by automated mechanical equipment. The core making line 50 includes an assembly station, where manual or mechanical equipment can use materials such as bottom plates to complete the assembly of the required sand box.

[0094] In one embodiment, the core making line 50 includes multiple groups of motorized rollers 51, and any group of motorized rollers 51 can receive a group of materials. The motorized rollers include multiple rollers arranged side by side, and all the rollers are linked. When one of the rollers is driven to rotate by a driving member (such as a motor, etc.), all the rollers can rotate under the linkage structure, thereby driving the materials placed on the rollers to move forward; when the driving member rotates in the reverse direction, the rotation direction of the rollers changes, and the materials placed on them can be driven to move in the reverse direction.

[0095] In this embodiment, at least one group of motorized rollers 51 is connected to the assembly station, and materials such as bottom plates and empty sand boxes can be transported to the assembly station through the motorized rollers 51, so that workers or mechanical equipment can assemble them. After the assembled sand box is put back into the motorized roller 51, it can also be transported out through the reverse movement of the motorized roller 51. The assembled sand box can be transported to the first station A for standby use, or it can be transported back to the upstream (such as the stereoscopic warehouse 70) for storage.

[0096] In this embodiment, at least one set of motorized rollers 51 is connected to the first station A, and the assembled sand box to be filled with sand can be transported to the first station A via the motorized rollers 51. After the sand filling is completed, the sand box loaded with molding sand returns to the motorized rollers 51, and the motorized rollers 51 can output the sand box by reverse operation.

[0097] Multiple groups of motorized rollers 51 cooperate to realize the circulation of materials.

[0098] Optionally, in this embodiment, a plurality of groups of motorized rollers 51 are connected end to end and arranged in a ring shape.

[0099] For details, please refer to Figure 1 In the illustrated embodiment, the core making line 50 includes fourteen groups of motorized rollers 51, which are connected head to tail and arranged in sequence in a rectangular shape; each group of motorized rollers 51 can receive a group of materials; one group of motorized rollers 51 is connected to the three-dimensional warehouse 70, and when the three-dimensional warehouse 70 needs to provide the materials to be assembled, the handling mechanism of the three-dimensional warehouse 70 can transfer the materials to the group of motorized rollers 51; another group of motorized rollers 51 is connected to the assembly station, and the workers or mechanical equipment at the assembly station can not only receive the transported materials through the group of motorized rollers 51, but also put the sand boxes to be filled with sand into the group of motorized rollers 51; another group of motorized rollers 51 is connected to the first station A, or another group of motorized rollers 51 is in the first station A, and the group of motorized rollers 51 can receive the sand boxes to be filled with sand, so that the sand boxes reach the first station A, and it is convenient for the sand boxes to receive the sand filling, and can also transport the sand boxes that have been filled with sand. The multiple groups of motorized rollers 51 of the core making line 50 run in the same direction along the circular layout, and the materials placed on the motorized rollers 51 can move forward sequentially along the circular line. Finally, the sand boxes with completed sand filling can also be stored in the stereoscopic warehouse 70.

[0100] The circular assembly line occupies a small area and can also centrally arrange various workstations around the core making line 50, further optimizing the workshop layout. At the same time, since the core making line 50 has a large number of motorized rollers 51, a large number of materials can be circulated thereon at the same time. In some cases, the motorized rollers 51 of the core making line 50 can also be used to temporarily store the sand boxes after filling with sand, ensuring that the sand mold has sufficient hardening time during the process.

[0101] In one embodiment, the molding line 60 includes: an assembly section 61, which is located upstream of the second station and is used to assemble a base plate, a sand box and a mold to obtain a sand box to be filled with sand; a hardening section 62, which is located downstream of the second station and is used to temporarily store the sand box after being filled with sand; and a demolding section 63, which is located downstream of the hardening section 62 and is used to flip the sand box to facilitate the removal of the hardened sand mold.

[0102] For details, please refer to Figure 1 In the illustrated embodiment, the molding line 60 is arranged on the right side of the mother sand mixer 20; wherein, the assembling portion 61 is arranged at the top, the hardening portion 62 is arranged below the assembling portion 61 and close to the mother sand mixer 20, the upper part of the hardening portion 62 is connected to the second station B, the lower part of the hardening portion 62 is connected to the three-dimensional warehouse 70, the demoulding portion 63 is arranged below the assembling portion 61 and away from the mother sand mixer 20, and the lower part of the demoulding portion 63 is also connected to the three-dimensional warehouse 70.

[0103] Workers or mechanical equipment assemble sand boxes in the assembly section 61, and the assembled sand boxes are transported downward to the second station B and the hardening section 62; the sand boxes are filled with sand at the second station B; the sand boxes that have completed sand filling continue to be transported downward to the hardening section 62, and the sand boxes will stay in the hardening section 62 for a period of time to achieve hardening; according to the hardening time and the needs of the downstream work rhythm, the hardening section 62 can input the sand boxes into the stereoscopic warehouse 70; the hardened sand boxes can be transported to the right by the hardening section 62, or transported upward by the stereoscopic warehouse 70 to enter the demolding section 63; the demolding section 63 can take out the hardened sand molds in the sand boxes; during the demolding process, the removed bottom plate, empty sand boxes and other materials can be transported upward and returned to the assembly section 61 for reuse, and the taken out sand molds can be transported downward and returned to the stereoscopic warehouse 70 for storage.

[0104] More specifically, the assembling portion 61 , the hardening portion 62 and the demolding portion 6 all include a plurality of conveying mechanisms (such as conveyor belts, motorized rollers, etc.), and the molding line 60 receives the materials through the conveying mechanisms to realize the transfer of the materials.

[0105] The ingenious layout of the molding line 60 connects multiple workstations in series, realizes the rapid flow and multi-directional transportation of materials, and further optimizes the layout.

[0106] Optionally, the molding section claimed in the present application further includes a three-dimensional warehouse 70, which is connected to the core making line 50 and the molding line 60 for intelligent storage of materials.

[0107] Specifically, the three-dimensional warehouse 70 includes a warehouse and a transfer cart. The warehouse is arranged with multiple floors, and each floor is provided with multiple rooms. Each room can store a material (such as a base plate, an empty sand box, a mold, an assembled sand box, a sand box filled with sand, a sand box in hardening, etc.). The transfer cart can move in multiple directions in the warehouse and can go to rooms at different floors and different locations to store or take out materials. The transfer cart can also connect to the core making line 50 and the molding line 60 to realize the series connection of the warehouse and the industrial production line.

[0108] Furthermore, the three-dimensional warehouse 70 has an intelligent recording system, which can record the information of stored materials (including material type, storage time of materials, etc.), and can also intelligently optimize the storage plan to store materials of the same type or batch in a unified area, which is convenient for the transfer cart to take and put materials, and also convenient for statistics on the storage status of materials.

[0109] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A mother-child sand mixer, characterized in that: include: A sub-sand mixer (10), used for docking with the first workstation and performing sand filling; A mother sand mixer (20) is arranged side by side and back to back with the sub-sand mixer (10), and is used to connect the second station and the third station to perform sand filling; Wherein, the first workstation, the second workstation and the third workstation are arranged in a triangle; The sand processing capacity of the primary sand mixer (20) is greater than the sand processing capacity of the secondary sand mixer (10).

2. The mother-child sand mixer according to claim 1, characterized in that: The sub-sand mixer (10) comprises: A first conveying arm (11) is used for conveying sand and liquid material; a first stirring cage (12), connected to the first conveying arm (11), for receiving and stirring material sand and material liquid to obtain and output molding sand; The first stirring cage (12) is rotatably arranged on the first conveying arm (11), and the position of the first stirring cage (12) outputting the molding sand can be adjusted by rotating it.

3. The mother-child sand mixer according to claim 1, characterized in that: The primary sand mixer (20) comprises: The second conveying arm (21) is used for conveying sand and liquid material; A second stirring cage (22) connected to the second conveying arm (21); A third stirring cage (23), connected to the second conveying arm (21); Wherein, the second stirring cage (22) and the third stirring cage (23) are both capable of receiving and stirring material sand and material liquid to obtain molding sand; The second stirring cage (22) is rotatably arranged on the second conveying arm (21); The third stirring cage (23) is rotatably arranged on the second stirring cage (22).

4. The mother-child sand mixer according to claim 3, characterized in that: The primary sand mixer (20) further comprises: A rotary drive mechanism (24) for driving the second conveying arm (21) to rotate horizontally so as to adjust the output position of the molding sand; And / or, a swing drive mechanism (25) is used to drive the second conveying arm (21) to swing vertically, so as to adjust the output height of the molding sand.

5. The mother-child sand mixer according to claim 1, characterized in that: A vibration platform (30) is provided at the first workstation, the second workstation and / or the third workstation. The vibration platform (30) is used to receive a sand box to be filled with sand and is capable of vibrating the sand box to facilitate compaction of the molding sand in the sand box.

6. The mother-child sand mixer according to any one of claims 1 to 5, characterized in that: It also comprises a silo (40), wherein the silo (40) is used to store material sand and / or material liquid so as to supply the sub-sand mixer (10) and the main sand mixer (20).

7. A molding part, characterized in that: The mother-child sand mixer according to any one of claims 1 to 6 further comprises: a core making line (50) connected to the first workstation and capable of conveying a core making mold and a sand box to the first workstation, so as to facilitate the sub-sand mixer (10) to prepare a sand core; The molding line (60) is connected to the second workstation and is capable of conveying molding molds and sand boxes to the second workstation, so as to facilitate the preparation of sand molds by the primary sand mixer (20).

8. The molding part according to claim 7, characterized in that: The core making line (50) comprises a plurality of groups of motorized rollers (51), and the plurality of groups of motorized rollers (51) are connected end to end and arranged in a ring shape.

9. The molding part according to claim 7, characterized in that: The molding line (60) comprises: An assembly part (61) is arranged upstream of the second station and is used for assembling the bottom plate, the sand box and the mold to obtain a sand box to be filled with sand; A hardening section (62), disposed downstream of the second station, for storing the sand box after being filled with sand; The demoulding part (63) is arranged downstream of the hardening part (62) and is used to overturn the sand box to facilitate the removal of the hardened sand mold.

10. The molding part according to any one of claims 7 to 9, characterized in that: It also comprises a three-dimensional warehouse (70), wherein the three-dimensional warehouse (70) is connected to the core making line (50) and the molding line (60) and is used for intelligent storage of materials.

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