Double-station horizontal hot core machine

Abstract

The utility model discloses a double-station horizontal hot core machine, which comprises a hot core machine, a double-station circulating feeding mechanism and a mould push-pull mechanism, the double-station circulating feeding mechanism comprises a roller way, the roller way is provided with a mould lower mould I and a mould lower mould II, the mould lower mould I moves back and forth between a core taking position I and a mould machine entering position, and the mould lower mould II moves back and forth between a core taking position II and a mould machine entering position. The second lower mold body moves back and forth between the second core taking position and the mold machine entering position, a machine entering position rail is arranged on one side of the mold machine entering position, the upper mold body can be assembled with the first lower mold body and the second lower mold body on the machine entering position rail, and a piston of the jacking hydraulic cylinder penetrates through the connecting frame to be connected with the sand core demolding top plate. Ejector rods are arranged on the two sides of the sand core demolding ejector plate, and a push-pull hydraulic cylinder and an overturning hydraulic cylinder are connected to the overturning hook. The sand core curing time is parallel to the other sand core taking time, the production takt time of the hot core machine is greatly shortened, and the equipment is based on a conventional hot core machine and is matched with a double-station circulating system, so that the equipment is flexible and convenient to operate and high in production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of casting, in particular to a double-station horizontal hot core machine. Background Technique

[0002] At the present stage, the high-end casting product manufacturing industry is developing towards high speed and automation, and the production processes of parts of high-end products such as automobiles, aviation, and non-ferrous metals are also constantly improving. The market demand for equipment is increasing continuously. The core-making process of the traditional core-making machine is: mold closing - sand shooting - delay curing - mold opening and core ejection. The production cycle of a single-mode core of the core-making machine is 60 s for the core-making machine to close the mold, shoot sand, open the mold and eject the core, and 90 s for delay curing. The problem that puzzles each production enterprise is that the core-making cycle has been difficult to improve, and the production efficiency is relatively low. The usual countermeasure is only to purchase a large number of core-making machines, resulting in a large amount of equipment investment and a large number of personnel configurations, increasing the production cost of the enterprise.

[0003] Therefore, we propose a double-station horizontal hot core machine. Content of the Utility Model

[0004] The purpose of the utility model is to provide a double-station horizontal hot core machine which is flexible and convenient to operate, saves resin-coated sand, has high production efficiency, short cycle period and can greatly reduce the production cost, so as to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A double-station horizontal hot core machine, including a hot core machine body, a double-station circulating feeding mechanism and a mold pushing and pulling mechanism. The double-station circulating feeding mechanism includes a horizontally arranged roller path, a group of sliding plates are arranged on the roller path, a mold lower die one and a mold lower die two are respectively arranged in the sliding plates. Core-taking positions one and two are symmetrically arranged at both ends of the roller path, and a mold feeding position is arranged in the middle of the roller path. The mold lower die one makes a reciprocating motion between the core-taking position one and the mold feeding position, and the mold lower die two makes a reciprocating motion between the core-taking position two and the mold feeding position. A connected feeding position track is vertically arranged on one side of the mold feeding position, and the mold upper die of the hot core machine body is arranged above the feeding position track. The mold upper die can be respectively combined with the mold lower die one and the mold lower die two on the feeding position track. A connecting frame is arranged at the bottom of the sliding plate, the connecting frame is arranged below the roller path, a jacking hydraulic cylinder is arranged on the outer side of the bottom of the connecting frame, and a core demolding top plate is arranged on the inner side of the bottom of the connecting frame. The piston of the jacking hydraulic cylinder penetrates through the connecting frame and is connected with the core demolding top plate. Top rods are arranged on both sides of the core demolding top plate, and the top rods are used to separate the core from the mold.

[0006] The mold pushing and pulling mechanism includes a bracket arranged on one side of the track at the mold loading position. A tipping hook is provided on the bracket. A pushing and pulling hydraulic cylinder and a tipping hydraulic cylinder are connected to the extension rod of the tipping hook. The pushing and pulling hydraulic cylinder is used to push out and retract the tipping hook, and the tipping hydraulic cylinder is used to tip the tipping hook along its axis. A connecting hook is provided on one side of the sliding plate, and the connecting hook can engage with the tipping hook.

[0007] Preferably, sand core demolding top plate rods are further provided on both sides of the bottom of the sand core demolding top plate, and the sand core demolding top plate rods penetrate and extend out of the bottom of the connecting frame.

[0008] Preferably, a coupling is connected between the end of the extension rod of the tipping hook and the piston of the pushing and pulling hydraulic cylinder.

[0009] Preferably, a reduction motor is further provided at the bottom of one side of the roller path, and the reduction motor drives the chain of the roller path to perform a decelerated reciprocating motion.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model includes a double-station cyclic feeding mechanism and a mold pushing and pulling mechanism. For the lower mold I of the mold at the mold loading position, under the drive of the pushing and pulling hydraulic cylinder and the tipping hydraulic cylinder, the tipping hook acts on the connecting hook to pull the lower mold I to directly below the upper mold. The lower mold I of the mold and the upper mold start to close the mold, and the hot core machine starts to inject sand and cure it. After the curing is completed, the lower mold I of the mold and the upper mold are separated. After the separation is in place, the pushing and pulling hydraulic cylinder pushes the lower mold I of the mold with the sand core to the mold loading position. The tipping hook is disengaged from the connecting hook, and under the drive of the roller path, it returns to the core picking position I to pick up the core. At the same time, it drives the lower mold II at the core picking position II to be transported to the mold loading position and stop positioning. Then the mold pushing and pulling mechanism starts to work, pulling the lower mold II to directly below the upper mold. After the lower mold II of the mold and the upper mold are completely aligned, they start to close the mold, and the hot core machine starts to inject sand and cure it. While the curing is in progress, the sand core in the lower mold I at the core picking position I is taken out. In this way, the process is cycled in turn, making the sand core curing time parallel to the time of taking another sand core, greatly shortening the production beat of the hot core machine. This equipment is based on a conventional hot core machine and is equipped with a double-station cyclic system, making it have the advantages of flexible and convenient operation, saving resin sand, high production efficiency, short cycle period, etc., and can also greatly reduce the production cost of casting production enterprises. Description of the Drawings

[0011] Figure 1 It is the right view of the present utility model;

[0012] Figure 2 It is the front view of the double-station cyclic feeding mechanism in the present utility model;

[0013] Figure 3 It is the top view of the double-station cyclic feeding mechanism in the present utility model.

[0014] In the figure: 1. Hot core machine body; 2. Roller path; 3. Core-taking position 1; 4. Core-taking position 2; 5. Slide plate; 6. Lower die 1 of the mold; 7. Lower die 2 of the mold; 8. Mold inlet position; 9. Inlet position track; 10. Upper die of the mold; 11. Connecting frame; 12. Jacking hydraulic cylinder; 13. Core sand demolding top plate; 14. Core-pushing rod; 15. Bracket; 16. Turning hook; 17. Push-pull hydraulic cylinder; 18. Turning hydraulic cylinder; 19. Connecting hook; 20. Core sand demolding top plate rod; 21. Coupling; 22. Reducing motor. Detailed implementation manners

[0015] The present utility model will be described in detail below. The technical solutions in the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0016] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model; the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; 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 internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0017] Please refer to Figures 1-3, the utility model includes a hot core machine body 1, a double-station circulating feeding mechanism and a mold pushing and pulling mechanism. The double-station circulating feeding mechanism includes a horizontally arranged roller path 2. A group of slide plates 5 are arranged on the roller path 2. A mold lower die one 6 and a mold lower die two 7 are respectively arranged in the slide plates 5. Core-taking positions one 3 and core-taking positions two 4 are symmetrically arranged at both ends of the roller path 2. A mold feeding position 8 is arranged at the middle position of the roller path 2. The mold lower die one 6 makes a reciprocating motion between the core-taking position one 3 and the mold feeding position 8. The mold lower die two 7 makes a reciprocating motion between the core-taking position two 4 and the mold feeding position 8. A connected feeding position track 9 is vertically arranged on one side of the mold feeding position 8. The mold upper die 10 of the hot core machine body 1 is arranged above the feeding position track 9. The mold upper die 10 can be respectively combined with the mold lower die one 6 and the mold lower die two 7 on the feeding position track 9. A connecting frame 11 is arranged at the bottom of the slide plate 5. The connecting frame 11 is arranged below the roller path 2. A jacking hydraulic cylinder 12 is arranged on the outer side of the bottom of the connecting frame 11. A core sand demolding top plate 13 is arranged on the inner side of the bottom of the connecting frame 11. The piston of the jacking hydraulic cylinder 12 penetrates through the connecting frame 11 and is connected with the core sand demolding top plate 13. Top rods 14 are arranged on both sides of the core sand demolding top plate 13. The top rods 14 are used to separate the core sand from the mold;

[0018] The mold pushing and pulling mechanism includes a bracket 15 arranged on one side of the feeding position track 9. A turning hook 16 is arranged on the bracket (15). A pushing and pulling hydraulic cylinder 17 and a turning hydraulic cylinder 18 are connected to the extension rod of the turning hook 16. The pushing and pulling hydraulic cylinder 17 is used to push out and retract the turning hook 16. The turning hydraulic cylinder 18 is used to turn the turning hook 16 along the axis. A connecting hook 19 is arranged on one side of the slide plate 5. The connecting hook 19 and the turning hook 16 can be engaged.

[0019] Specifically, in this embodiment, the hot core machine body 1 is a conventional hot core machine. The hot core machine is installed on the ground foundation, and the double-station cyclic feeding mechanism is installed on the ground foundation and adjacent to the hot core machine. The roller path 2 is a transmission chain roller. The roller path 2 drives the lower die 6 of the mold to reciprocate between the core-taking position 3 and the mold feeding position 8. At the same time, the lower die 7 of the second mold reciprocates between the core-taking position 4 and the mold feeding position 8. The connecting frame 11 installed at the bottom of the sliding plate 5, the lifting hydraulic cylinder 12, the core demolding top plate 13, and the core pushing rod 14 inside the connecting frame 11 all move together with the sliding plate 5. A connecting hook is installed on one side of the sliding plate 5 close to the hot core machine, and can firmly engage with the flipping hook 16. When the lower die 6 of the first mold or the lower die 7 of the second mold reaches the mold feeding position 8, the piston of the push-pull hydraulic cylinder 17 is connected to the extension rod of the flipping hook 16. The push-pull hydraulic cylinder 17 pushes the flipping hook 16 to the connecting hook 19. The flipping hydraulic cylinder 18 installed on the extension rod of the flipping hook 16 starts to work, flips the flipping hook 16, and firmly grasps the flipping hook 16 and the connecting hook 19. Then the push-pull hydraulic cylinder 17 starts to work again. While retracting the piston, it drags the sliding plate 5 carrying the lower die 6 of the first mold or the lower die 7 of the second mold onto the feeding position track 9 to perform operations such as mold closing.

[0020] Please refer to Figure 2 , and sand core demolding top plate rods 20 are further provided on both sides of the bottom of the sand core demolding top plate 13. The sand core demolding top plate rods 20 penetrate and extend out of the bottom of the connecting frame 11.

[0021] Specifically, in this embodiment, sand core demolding top plate rods 20 are installed on both sides of the bottom of the sand core demolding top plate 13 to prevent the sand core demolding top plate 13 from shaking and falling off when ejecting the sand core.

[0022] Please refer to Figure 2 , and a coupling 21 is connected between the end of the extension rod of the flipping hook 16 and the piston of the push-pull hydraulic cylinder 17.

[0023] Specifically, in this embodiment, a coupling 21 is installed between the end of the extension rod of the flipping hook 16 and the piston of the push-pull hydraulic cylinder 17, ensuring high centering of the two shafts and a large transmitted torque.

[0024] Please refer to Figure 1 and 2 , and a reduction motor 22 is further provided at the bottom of one side of the roller path 2. The reduction motor 22 drives the chain of the roller path 2 to perform a decelerated reciprocating motion.

[0025] Specifically, in this embodiment, since the lower die 6 of the first mold needs to reciprocate between the core-taking position 3 and the mold feeding position 8, and the lower die 7 of the second mold needs to reciprocate between the core-taking position 4 and the mold feeding position 8, the reduction motor 22 is thus adopted.

[0026] The working principle of the present utility model:

[0027] The lower die 1 of the mold is conveyed to the mold loading position 8 through the roller path 2 and stops for positioning. The turning hook 16 starts to extend under the drive of the push-pull hydraulic cylinder 17 and the turning hydraulic cylinder 18, and grabs into the connecting hook 19 of the slide plate 5, pulling the lower die 1 of the mold to directly below the upper die 10 of the hot core machine mold. After the lower die 1 of the mold is completely aligned with the upper die 10 of the mold, the push-pull hydraulic cylinder 17 stops working. At this time, the lower die 1 of the mold and the upper die 10 of the mold start to close the mold, the hot core machine starts to shoot sand, and curing is carried out. After the curing is completed, the lower die 1 of the mold and the upper die 10 of the mold are separated. After the mold separation is in place, the push-pull hydraulic cylinder 17 starts to push the lower die 1 of the mold to the mold loading position 8;

[0028] After the lower die 1 of the mold that has completed core making reaches the mold loading position 8, the reduction motor 22 receives a signal and drives the roller path 2 to rotate, thereby driving the lower die 1 of the mold to be conveyed to the core taking position 1 for core taking. At the same time, it drives the lower die 2 of the mold to be conveyed to the mold loading position 8. After positioning and stopping, the turning hook 16 starts to extend and pulls the lower die 2 of the mold to directly below the upper die 10 of the mold. After the lower die 2 of the mold and the upper die 10 of the mold are completely aligned, the push-pull hydraulic cylinder 17 stops working. At this time, the lower die 2 of the mold and the upper die 10 of the mold start to close the mold, the hot core machine starts to shoot sand, and curing is carried out. While curing, the core on the lower die 1 of the mold at the core taking position 1 is taken out. In turn, the time for curing the core and the time for taking another core are carried out in parallel, greatly shortening the production beat of the hot core machine. This equipment is based on a conventional hot core machine and is equipped with a double-station circulation system, making it have the advantages of flexible and convenient operation, saving coated sand, high production efficiency, short cycle period, etc., and can also greatly reduce the production cost of foundry enterprises.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-station horizontal hot core machine, characterized in that: The invention comprises a hot core machine body (1), a double-station circulating feeding mechanism and a mold push-pull mechanism. The double-station circulating feeding mechanism comprises a horizontally arranged roller (2). A group of slide plates (5) are arranged on the roller (2). A mold lower mold 1 (6) and a mold lower mold 2 (7) are arranged in the slide plates (5). A core taking position 1 (3) and a core taking position 2 (4) are symmetrically arranged at both ends of the roller (2). A mold entry position (8) is arranged in the middle of the roller (2). The mold lower mold 1 (6) moves back and forth between the core taking position 1 (3) and the mold entry position (8). The mold lower mold 2 (7) moves back and forth between the core taking position 2 (4) and the mold entry position (8). A connected entry position track (9) is vertically arranged on one side of the mold entry position (8). The hot core machine body The upper mold (10) of the mold body (1) is arranged above the entry track (9), and the upper mold (10) can be molded with the lower mold 1 (6) and the lower mold 2 (7) on the entry track (9) respectively. A connecting frame (11) is provided at the bottom of the slide plate (5), and the connecting frame (11) is arranged below the roller table (2). A lifting hydraulic cylinder (12) is provided on the outer side of the bottom of the connecting frame (11), and a sand core demoulding top plate (13) is provided on the inner side of the bottom of the connecting frame (11). The piston of the lifting hydraulic cylinder (12) passes through the connecting frame (11) and is connected to the sand core demoulding top plate (13). Ejector rods (14) are provided on both sides of the sand core demoulding top plate (13), and the ejector rods (14) are used to separate the sand core from the mold. The mold push-pull mechanism comprises a bracket (15) arranged on one side of the machine entry track (9), a flip hook (16) is arranged on the bracket (15), a push-pull hydraulic cylinder (17) and a flip hydraulic cylinder (18) are connected to the extension rod of the flip hook (16), the push-pull hydraulic cylinder (17) is used to push out and retract the flip hook (16), and the flip hydraulic cylinder (18) is used to flip the flip hook (16) along the axis, and a connecting hook (19) is arranged on one side of the slide plate (5), and the connecting hook (19) and the flip hook (16) can be engaged.

2. The double-station horizontal hot core machine according to claim 1, characterized in that: Sand core demoulding top plate rods (20) are also provided on both sides of the bottom of the sand core demoulding top plate (13), and the sand core demoulding top plate rods (20) penetrate through and extend out of the bottom of the connecting frame (11).

3. The double-station horizontal hot core machine according to claim 1, characterized in that: A coupling (21) is connected between the end of the extension rod of the flip hook (16) and the piston of the push-pull hydraulic cylinder (17).

4. The double-station horizontal hot core machine according to claim 1, characterized in that: A reduction motor (22) is also provided at the bottom of one side of the roller conveyor (2), and the reduction motor (22) drives the chain of the roller conveyor (2) to perform a reduction reciprocating motion.

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