Mistake-proof double-rail replacement iron molded line

Abstract

The invention relates to the technical field of sand box mold pouring, in particular to a mistake-proof double-track replacement iron molded line which comprises a lower mold assembly, an upper mold assembly matched with the lower mold assembly is arranged on the upper side of the lower mold assembly, and a mistake-proof structure is arranged between the lower mold assembly and the upper mold assembly; the lower mold assembly is arranged on an iron mold line, a transferring mechanism is arranged on the iron mold line, and a sand coating assembly, a box overturning assembly, a box closing assembly, a pouring assembly and a vibration cleaning assembly are sequentially arranged along the iron mold line. The upper mold and the lower mold of the same sand box mold are prevented from being mismatched, and the production efficiency of a pouring body is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sand box mold casting, and particularly to a double-track replacement iron mold line with anti-misalignment type. Background Art

[0002] The sand box mold is the core tooling in the casting process for accommodating and fixing molding sand. The inner cavity structure forms the contour of the casting, ensuring the stability of the sand mold during sand filling, compaction, flipping, and pouring processes. Its rigid frame can effectively prevent the sand mold from collapsing due to the impact of molten metal.

[0003] In order to improve the casting efficiency of castings, the sand box mold is placed on the iron mold line, and the sand box mold moves from one station to the next continuously through the iron mold line and finally completes casting and cooling. However, in the existing iron mold lines, two or more casting bodies are often cast, and different casting bodies require different casting molds. When there are multiple sand box molds mixed on the iron mold line, it is easy to be confused. And after misplacement, the new mold may cause the surface of the sand mold to be uneven and have a high roughness due to surface processing marks, defects, etc., and then defects such as sand holes and sand inclusions may appear on the surface of the casting, resulting in the scrapping of the casting. In severe cases, it may even cause equipment damage or the mold itself to break and be scrapped due to the mismatch between the mold and the equipment or process. This not only affects the production efficiency, increases the production cost, but also may cause delays in the entire production process.

[0004] Therefore, those skilled in the art are committed to developing a double-track replacement iron mold line with anti-misalignment type to prevent the upper mold and the lower mold of the same sand box mold from being mismatched and improve the production efficiency of casting bodies. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a double-track replacement iron mold line with anti-misalignment type to prevent the upper mold and the lower mold of the same sand box mold from being mismatched and improve the production efficiency of casting bodies.

[0006] The technical solution of the present invention to solve the above technical problem is as follows: A double-track replacement iron mold line with anti-misalignment type, comprising a lower mold assembly, an upper mold assembly cooperating with the lower mold assembly is arranged on the upper side of the lower mold assembly, and an anti-misalignment structure is arranged between the lower mold assembly and the upper mold assembly; the lower mold assembly is arranged on the iron mold line, a transfer mechanism is arranged on the iron mold line, and a sand covering assembly, a mold flipping assembly, a mold closing assembly, a casting assembly, and a vibration cleaning assembly are arranged in sequence along the iron mold line.

[0007] The beneficial effects of adopting the above solution are as follows: By setting an anti-mismatch structure between the lower die assembly and the upper die assembly, it effectively avoids the quality problems of castings caused by the mismatch of the sand box mold, reduces the occurrence probability of such defects, reduces the scrapping of castings, and improves the overall quality of castings. Transfer mechanisms such as a sand covering assembly, a mold flipping assembly, a mold closing assembly, a pouring assembly, and a vibration cleaning assembly are sequentially arranged on the iron mold line, enabling the sand box mold to move and operate efficiently and orderly among various workstations on the iron mold line. From sand covering, mold flipping to mold closing, pouring, and finally vibration cleaning, each link is closely connected, which helps to optimize the production process, reduce unnecessary waiting time and material handling costs, and thus improves the production efficiency of the entire casting body. At the same time, it avoids production delays that may be caused by equipment damage or mold scrapping due to mold mismatch, ensuring the continuity and stability of production.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Further, the lower die assembly includes a lower die body, and a first receiving cavity for receiving a core is provided on the lower die body. The upper die assembly includes an upper die body, and a second receiving cavity cooperating with the first receiving cavity is provided on the upper die body.

[0010] The beneficial effects of adopting the above further solution are as follows: By providing a first receiving cavity on the lower die body and a second receiving cavity cooperating therewith on the upper die body, it provides an accurate positioning and receiving space for the core, enabling the inner cavity structure of the casting to be formed more accurately, improving the dimensional accuracy and shape complexity of the casting, and meeting the production requirements of high-quality castings.

[0011] Further, the anti-mismatch structure includes a positioning member provided on the upper die assembly, and a positioning groove cooperating with the positioning member is provided at the corresponding position of the lower die assembly.

[0012] The beneficial effects of adopting the above further solution are as follows: In the anti-mismatch structure where a positioning member is provided on the upper die assembly and a positioning groove is provided correspondingly on the lower die assembly, through the cooperation of the positioning member and the positioning groove, the upper die assembly and the lower die assembly can be installed in place only when they are correctly matched, effectively preventing production accidents and casting defects caused by mold mismatch, and improving the reliability of the production process.

[0013] Further, the positioning member includes a first positioning portion, and a second positioning portion and a third positioning portion are respectively connected to both ends of the first positioning portion. The cross-section of the first positioning portion is rectangular, and the cross-sections of the second positioning portion and the third positioning portion are semi-circular.

[0014] The beneficial effects of adopting the above further scheme are as follows: The cross-section of the first positioning part of the positioning part is rectangular, and the cross-sections of the second positioning part and the third positioning part at both ends are semi-circular, making the cooperation between the positioning part and the positioning groove more precise, the connection more stable, and facilitating uniform outward expansion when heated.

[0015] Further, the transfer mechanism includes a transfer track, the transfer track is arranged in an alternating manner with the iron mold line, a rail car is arranged on the transfer track, a slide rail assembly is installed on the rail car, and the lower mold assembly is arranged on the slide rail assembly.

[0016] The beneficial effects of adopting the above further scheme are as follows: The transfer mechanism consists of a transfer track, a rail car and a slide rail assembly. The transfer track is arranged in an alternating manner with the iron mold line, and the slide rail assembly on the rail car can flexibly move the lower mold assembly, making the transfer of the mold assembly on the iron mold line more efficient and flexible, reducing the handling time and labor intensity between each working station of the mold, and improving the overall operation efficiency of the production line.

[0017] Further, the sand covering assembly includes a sand covering machine, the sand covering machine is installed on the iron mold line, and the sand covering machine is used to cover a resin sand layer in the upper mold assembly and the lower mold assembly.

[0018] The beneficial effects of adopting the above further scheme are as follows: The sand covering machine in the sand covering assembly is installed on the iron mold line, and can evenly cover a resin sand layer in the upper mold assembly and the lower mold assembly. The uniform resin sand layer helps to improve the strength and refractoriness of the sand mold, thereby ensuring the quality and dimensional stability of the casting during the pouring process, and reducing the generation of defects such as sand holes and sand inclusions.

[0019] Further, the mold turning assembly includes a mold turning machine, the mold turning machine is installed on the iron mold line and is located downstream of the sand covering assembly, and the mold turning machine is used to turn the upper mold assembly or the lower mold assembly.

[0020] The beneficial effects of adopting the above further scheme are as follows: The mold turning machine of the mold turning assembly is installed on the iron mold line and is located downstream of the sand covering assembly, mainly used to perform the turning operation on the upper mold assembly or the lower mold assembly. It can complete the mold turning quickly and accurately, ensure the smoothness and safety of the turning process, avoid mold damage and personnel injury caused by manual turning, and improve the production efficiency at the same time.

[0021] Further, the mold closing assembly includes a mold closing machine, the mold closing machine is installed on the iron mold line and is located downstream of the mold turning assembly, and the mold closing machine is used to close and fix the upper mold assembly and the lower mold assembly.

[0022] The beneficial effects of adopting the above further solution are as follows: The casing machine of the casing assembly is installed on the iron mold line and is located downstream of the mold flipping assembly. It is mainly used to fix the upper mold assembly and the lower mold assembly by casing. Through mechanized casing operation, the accuracy and tightness of casing can be ensured, the stability of the sand mold during the pouring process can be ensured, problems such as leakage of molten metal can be reduced, and the quality of the casting can be improved.

[0023] Further, the pouring assembly includes a pouring machine, which is installed on the iron mold line and is located downstream of the casing assembly. The pouring machine is used to pour molten metal into the upper mold assembly and the lower mold assembly.

[0024] The beneficial effects of adopting the above further solution are as follows: The pouring machine of the pouring assembly is installed on the iron mold line and is located downstream of the casing assembly. It is used to pour molten metal into the cased mold assembly, enabling automatic control of the pouring process, improving the pouring efficiency and the filling quality of the molten metal, reducing the influence of human factors on the pouring effect, and ensuring the internal quality of the casting.

[0025] Further, the vibration cleaning assembly includes a vibration cleaning machine, which is installed on the iron mold line and is located downstream of the pouring assembly. The vibration cleaning machine is used to clean the sand grains on the surface of the casting.

[0026] The beneficial effects of adopting the above further solution are as follows: The vibration cleaning machine of the vibration cleaning assembly is installed on the iron mold line and is located downstream of the pouring assembly. It is specifically used to clean the sand grains on the surface of the casting. Through vibration cleaning, the residual mold sand and debris on the surface of the casting can be efficiently removed, improving the surface cleanliness of the casting, facilitating subsequent cleaning, grinding, and inspection work, and enhancing the overall quality of the casting. Description of the Drawings

[0027] Figure 1 Schematic diagram of the layout structure of the iron mold line in a specific embodiment of the present invention; Figure 2 Schematic diagram of the mold closing structure of the upper mold assembly and the lower mold assembly in a specific embodiment of the present invention; Figure 3 Schematic diagram of the structure of the lower mold assembly in a specific embodiment of the present invention; Figure 4 Schematic diagram of the structure of the upper mold assembly in a specific embodiment of the present invention; Figure 5 Schematic diagram of the structure of the positioning member in a specific embodiment of the present invention; Figure 6 Schematic diagram of the transfer mechanism in a specific embodiment of the present invention.

[0028] In the drawings, the list of components represented by each reference numeral is as follows: 1. Lower die assembly; 2. Upper die assembly; 3. Iron mold line; 4. Transfer mechanism; 5. Sand covering assembly; 6. Mold turning assembly; 7. Mold closing assembly; 8. Pouring assembly; 9. Vibration cleaning assembly; 10. Lower die body; 11. First accommodation cavity; 12. Upper die body; 13. Second accommodation cavity; 14. Positioning member; 15. Positioning groove; 16. First positioning portion; 17. Second positioning portion; 18. Third positioning portion; 19. Transfer track; 20. Rail car; 21. Slide rail assembly; 22. Sand covering machine; 23. Mold turning machine; 24. Mold closing machine; 25. Pouring machine; 26. Vibration cleaning machine. Detailed implementation manner

[0029] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "peripheral side", "circumferential direction", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the system or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0031] In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 shown, a double-track replacement iron mold line with an anti-mistake type includes a lower die assembly 1, an upper die assembly 2 that cooperates with the lower die assembly 1 is arranged on the upper side of the lower die assembly 1, and an anti-mistake structure is arranged between the lower die assembly 1 and the upper die assembly 2; The lower mold assembly 1 is arranged on the iron mold line 3. A transfer mechanism 4 is arranged on the iron mold line 3, and a sand covering assembly 5, a mold turning assembly 6, a mold closing assembly 7, a pouring assembly 8 and a vibration cleaning assembly 9 are arranged in sequence along the iron mold line 3.

[0034] In the present invention, a sand covering assembly 5, a mold turning assembly 6, a mold closing assembly 7, a pouring assembly 8, a vibration cleaning assembly 9 and other transfer mechanisms are arranged in sequence on the iron mold line 3, enabling the sand box mold to move and operate efficiently and orderly among various workstations on the iron mold line 3. From sand covering and mold turning to mold closing and pouring, until the final vibration cleaning, each link is closely connected, which helps to optimize the production process, reduce unnecessary waiting time and material handling costs, thereby improving the production efficiency of the entire casting body. At the same time, it avoids production delays that may be caused by equipment damage or mold scrapping due to mold mismatch, ensuring the continuity and stability of production.

[0035] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 shown, in some embodiments, the lower mold assembly 1 includes a lower mold body 10. A first accommodation cavity 11 for accommodating the core is arranged on the lower mold body 10. The upper mold assembly 2 includes an upper mold body 12. A second accommodation cavity 13 cooperating with the first accommodation cavity 11 is arranged on the upper mold body 12. The first accommodation cavity 11 and the second accommodation cavity 13 cooperate to form an accommodation cavity for accommodating the core.

[0036] In the embodiment, the anti-mismatch structure includes a positioning member 14 arranged on the upper mold assembly 2. A positioning groove 15 cooperating with the positioning member 14 is arranged at the corresponding position of the lower mold assembly 1. In some embodiments, the positioning member 14 includes a first positioning portion 16. The two ends of the first positioning portion 16 are respectively connected with a second positioning portion 17 and a third positioning portion 18. The cross-section of the first positioning portion 16 is rectangular, and the cross-sections of the second positioning portion 17 and the third positioning portion 18 are semi-circular, forming a unique shape to achieve precise anti-mismatch positioning. At the same time, it is beneficial for the positioning member 14 to expand uniformly outward when heated, avoiding jamming between the positioning member 14 and the positioning groove 15.

[0037] The transfer mechanism 4 includes a transfer track 19. The transfer track 19 is arranged in a staggered manner with the iron mold line 3. In a specific embodiment, the transfer track 19 and the iron mold line 3 are vertically arranged to form a double-track replacement structure. A rail car 20 is arranged on the transfer track 19. A slide rail assembly 21 is installed on the rail car 20. The lower mold assembly 1 is arranged on the slide rail assembly 21. Place the required lower mold assembly 1 on the slide rail assembly 21. After moving the slide rail assembly 21 to the end of the iron mold line 3 through the rail car 20, then slide the lower mold assembly 1 onto the iron mold line 3 through the slide rail assembly 21.

[0038] As Figure 1As shown in the figure, in the embodiment, the sand covering assembly 5 includes a sand covering machine 22, which is installed on the iron mold line 3 and is used to cover a resin sand layer in the upper mold assembly 2 and the lower mold assembly 1. Specifically, the sand covering machine 22 includes a hopper, a sand shooting cylinder, a sand shooting plate and a pneumatic control system. Its sand shooting device is horizontally moved by being suspended on the guide rail through four groups of rollers. The sand shooting head is internally provided with a high permeability silicon steel sheet iron core wound with double coils, and the uniform injection of resin sand is realized by cooperating with the high-pressure air flow provided by the air storage tank. The bottom of the sand shooting plate is provided with sand blasting holes with a tee structure to enhance the density of the sand layer. The mold flipping assembly 6 includes a mold flipping machine 23, which is installed on the iron mold line 3 and is located downstream of the sand covering assembly 5. The mold flipping machine 23 is used to flip the upper mold assembly 2 or the lower mold assembly 1. Specifically, the mold flipping machine 23 adopts a hydraulic lifting and clamping mechanism, is configured with a rotating side plate supported by double-row rollers and a limit rod system, and realizes a smooth 180° flip through a three-stage hydraulic cylinder driving a suspension shaft. Bearing seat and gear ring meshing structures are installed at both ends of the rotating shaft to ensure that the verticality error of the sand box during the flipping process is less than 0.5°. The mold closing assembly 7 includes a mold closing machine 24, which is installed on the iron mold line 3 and is located downstream of the mold flipping assembly 6. The mold closing machine 24 is used to close and fix the upper mold assembly 2 and the lower mold assembly 1. Specifically, the mold closing machine 24 includes a lifting guide rail, a suspended clamping arm and multi-point vacuum suction cups. Its longitudinal moving frame realizes precise displacement through a servo motor driving a gear rack mechanism. The upper and lower moving platforms are internally provided with pressure sensors to monitor the clamping force in real time, and a magnetic positioning device is used to ensure zero-clearance fit between the upper and lower molds. The pouring assembly 8 includes a pouring machine 25, which is installed on the iron mold line 3 and is located downstream of the mold closing assembly 7. The pouring machine 25 is used to pour molten metal into the upper mold assembly 2 and the lower mold assembly 1. Specifically, the pouring machine 25 adopts a double-station sand shooting head design. The sand shooting air storage bag and the sand hopper are connected through a sand shooting cylinder, and is equipped with an intelligent temperature control module and a flow monitoring system. The sand shooting plate adopts a Z-shaped track joint splicing technology to enhance the structural stability. At the same time, an inclined plane diversion groove is built in to realize laminar filling of the molten metal, and the pouring temperature can be dynamically adjusted by ±10°C through the PLC system. The vibration cleaning assembly 9 includes a vibration cleaning machine 26, which is installed on the iron mold line 3 and is located downstream of the pouring assembly 8. The vibration cleaning machine 26 is used to clean the sand grains on the surface of the casting. Specifically, the vibration cleaning machine 26 adopts a composite structure of a horizontal vibration box and damping springs. A pressure sensor is embedded in the vibration outer box to monitor the contact pressure of the scraper. The reciprocating vibration cleaning of the scraper is realized by driving the slide rail through a hydraulic cylinder. The surface of the scraper is coated with a tungsten carbide coating to improve wear resistance. The amplitude can be steplessly adjusted within the range of 3.5 - 4.5 mm through a frequency converter, and a negative pressure dust removal system is cooperated to achieve a sand grain recovery rate of over 95%.

[0039] In the embodiment, a mold preheating component and a casting cooling component are also added to the iron mold line 3. The mold preheating component is located upstream of the sand coating component 5, and includes a preheating furnace and a temperature control device. The preheating furnace adopts induction heating, which can quickly and evenly preheat the lower mold component 1 and the upper mold component 2, and the temperature control device can accurately control the preheating temperature to ensure that the mold reaches a suitable temperature range before pouring, thereby improving the quality and production efficiency of the casting. The casting cooling component is located downstream of the vibration cleaning component 9, and a cooling channel and a circulating water system are provided inside it. The cooling channel is arranged around the casting placement area, and the circulating water system takes away the heat of the casting through the circulation of the coolant, thereby achieving rapid and uniform cooling of the casting, shortening the production cycle, and improving the dimensional accuracy and performance stability of the casting.

[0040] In addition, an automatic detection device is added to the closing machine 24, which can monitor in real time whether the mold components are tightly fitted after closing, ensuring the accuracy and stability of closing. A filtering device is also added to the gate system of the casting machine 25 to effectively filter impurities in the molten metal and prevent impurities from entering the mold cavity and affecting the quality of the casting. A shock-absorbing device is installed under the vibration table of the vibration cleaning machine 26 to reduce the impact of vibration on the equipment foundation and the surrounding environment, thereby improving the service life and working stability of the equipment.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-track replacement iron type wire with an anti-mistake type, characterized in that: including a lower die assembly (1), an upper die assembly (2) cooperating with the lower die assembly (1) is arranged on the upper side of the lower die assembly (1), and an anti-misalignment structure is arranged between the lower die assembly (1) and the upper die assembly (2); the lower die assembly (1) is arranged on an iron mold line (3), a transfer mechanism (4) is arranged on the iron mold line (3), and a sand covering assembly (5), a mold turning assembly (6), a mold closing assembly (7), a pouring assembly (8) and a vibration cleaning assembly (9) are sequentially arranged along the iron mold line (3).

2. The double-track replacement iron mold line with anti-misoperation according to claim 1, characterized in that: The lower die assembly (1) includes a lower die body (10), a first accommodation cavity (11) for accommodating a core is arranged on the lower die body (10), the upper die assembly (2) includes an upper die body (12), and a second accommodation cavity (13) cooperating with the first accommodation cavity (11) is arranged on the upper die body (12).

3. The double-track replacement iron mold line with anti-mistake type according to claim 1, characterized in that: The anti-misalignment structure includes a positioning member (14) arranged on the upper die assembly (2), and a positioning groove (15) cooperating with the positioning member (14) is arranged at the corresponding position of the lower die assembly (1).

4. The double-track replacement iron mold line with anti-mistake type according to claim 3, characterized in that: The positioning member (14) includes a first positioning portion (16), a second positioning portion (17) and a third positioning portion (18) are respectively connected to both ends of the first positioning portion (16), the cross section of the first positioning portion (16) is rectangular, and the cross sections of the second positioning portion (17) and the third positioning portion (18) are semi-circular.

5. The double-track replacement iron mold line with anti-misoperation according to claim 1, characterized in that: The transfer mechanism (4) includes a transfer track (19), the transfer track (19) is arranged in a staggered manner with the iron mold line (3), a rail car (20) is arranged on the transfer track (19), a slide rail assembly (21) is installed on the rail car (20), and the lower die assembly (1) is arranged on the slide rail assembly (21).

6. The double-track replacement iron type line with anti-mistake type according to claim 1, characterized in that: The sand covering assembly (5) includes a sand covering machine (22), the sand covering machine (22) is installed on the iron mold line (3), and the sand covering machine (22) is used for covering a resin sand layer in the upper die assembly (2) and the lower die assembly (1).

7. The double-track replacement iron mold line with anti-misoperation according to claim 1, characterized in that: The mold turning assembly (6) includes a mold turning machine (23), the mold turning machine (23) is installed on the iron mold line (3) and is located downstream of the sand covering assembly (5), and the mold turning machine (23) is used for turning over the upper die assembly (2) or the lower die assembly (1).

8. The double-track replacement iron mold line with anti-mistake type according to claim 1, characterized in that: The mold closing assembly (7) includes a mold closing machine (24), the mold closing machine (24) is installed on the iron mold line (3) and is located downstream of the mold turning assembly (6), and the mold closing machine (24) is used for closing and fixing the upper die assembly (2) and the lower die assembly (1).

9. The double-track replacement iron mold line with anti-misoperation according to claim 1, characterized in that: The pouring assembly (8) includes a pouring machine (25), the pouring machine (25) is installed on the iron mold line (3) and is located downstream of the mold closing assembly (7), and the pouring machine (25) is used for pouring molten metal into the upper die assembly (2) and the lower die assembly (1).

10. The double-track replacement iron mold line with anti-misoperation according to claim 1, characterized in that: The vibration cleaning assembly (9) includes a vibration cleaning machine (26), which is installed on the permanent mold line (3) and located downstream of the pouring assembly (8), and the vibration cleaning machine (26) is used to clean the sand grains on the surface of the casting.

Images