Automatic mold removing device for gravity casting machine

Abstract

The utility model discloses an automatic mould removal device for a gravity casting machine, which comprises a casting platform and a group of mould bodies in bilateral symmetry, a group of push-pull devices are arranged on the casting platform, and the mould bodies are connected with the push-pull devices and can move back and forth under the control of the push-pull devices. A lead screw transmission assembly is further arranged on the casting platform to assist the push-pull device to transfer the two mold bodies. The mold body can be automatically clamped or loosened through the arranged clamping assembly, meanwhile, the arranged push-pull assembly drives the clamping assembly to move to achieve movement of the mold body, and the function of automatically controlling mold closing and mold dismounting is achieved; and meanwhile, through the arrangement of the lead screw transmission assembly, force can be further applied to the two sides of the mold body to assist the clamping assembly in mold closing and mold stripping, through the arrangement of the push-pull transmission lead screw pair, the stability in the mold stripping and closing process is further improved, and the probability that the mold body scratches a casting is reduced.

Description

Technical Field

[0001] The utility model relates to the field of gravity casting machines, and particularly to an automatic mold removing device for a gravity casting machine. Background Technique

[0002] A gravity casting machine is a mechanical device that uses the earth's gravity to freely drop molten metal into a mold for casting. This casting method includes various types such as sand casting, metal mold casting, investment casting, and lost foam casting. Among them, metal mold casting is the main application method of gravity casting machines.

[0003] A gravity casting machine mainly consists of a fuselage, a pouring system, a compaction system, a control system, etc. Its working principle is to pour molten metal into a mold, and use the action of gravity to make the metal fill the cavity of the mold. After the metal cools and solidifies, the required casting is formed. Gravity casting machines are suitable for products with large-scale production, especially some castings with complex shapes and large sizes.

[0004] Gravity casting machines can be divided into two major categories: tilting type and fixed type. The tilting gravity casting machine can achieve tilting pouring of the mold, effectively improving the internal quality of the casting, and is especially suitable for gravity casting of complex castings such as intake manifolds. The fixed gravity casting machine is relatively stable and is suitable for some occasions with low requirements for casting accuracy.

[0005] Gravity casting machines have the advantages of simple structure, convenient operation, high production efficiency, low cost, etc., so they are widely used in industrial production. At the same time, gravity casting machines also have some disadvantages. For example, after casting is completed, it is necessary to manually remove the mold. Due to the certain adhesion force between the mold and the casting, manual mold removal not only has low efficiency, but also easily causes the situation that personnel are scalded by the high-temperature mold. At the same time, because the structures of most castings are irregular, the force applied during manual mold removal is not stable enough, resulting in relative inclination between the mold and the casting during mold removal, and finally causing the situation that the mold scratches the casting. Summary of the Invention

[0006] (1) Technical Problems to be Solved

[0007] The technical problem to be solved by the utility model is that after casting is completed, it is necessary to manually remove the mold. Due to the certain adhesion force between the mold and the casting, manual mold removal not only has low efficiency, but also easily causes the situation that personnel are scalded by the high-temperature mold. At the same time, because the structures of most castings are irregular, the force applied during manual mold removal is not stable enough, resulting in relative inclination between the mold and the casting during mold removal, and finally causing the situation that the mold scratches the casting.

[0008] (2) Technical Solutions

[0009] To solve the above problems, the present utility model provides the following technical solutions:

[0010] An automatic mold removal device for a gravity casting machine, comprising a casting platform provided on the casting equipment and a set of symmetrically arranged mold bodies on the left and right for casting. The mold bodies are arranged on the casting platform, and a set of symmetrically arranged push-pull devices are provided on the casting platform. The mold bodies are connected to the push-pull devices and can move back and forth under the control of the push-pull devices. Connecting ears are provided on both sides of the mold bodies, and waist-shaped through holes are provided on the connecting ears. A lead screw transmission assembly is also provided on the casting platform. The lead screw transmission assembly includes a driving motor, a push-pull transmission lead screw pair, a connecting plate, and a lead screw base. The connecting plate is fixedly arranged on the lead screw nut seat of the transmission lead screw pair. The push-pull transmission lead screw pair and the driving motor are arranged on the lead screw base. The driving motor is connected to the lead screw on the transmission lead screw pair through a coupling. The connecting ear is connected to the connecting plate by a screw passing through the waist-shaped through hole.

[0011] The push-pull device includes a push-pull component and a clamping component. The clamping component is arranged on the push-pull component and can move back and forth under the control of the push-pull component.

[0012] Further, the push-pull component includes a hydraulic cylinder, a cylinder base, a push-pull plate, a guide rod, a rear tail plate, and a dust-proof plate. The cylinder base is fixedly arranged on the casting platform. The cylinder body of the hydraulic cylinder is fixedly connected to the cylinder base, and the telescopic rod of the hydraulic cylinder passes through the cylinder base and is fixedly connected to the push-pull plate. One end of the dust-proof plate is fixedly connected to the upper end surface of the cylinder base, and the other end is connected to the rear tail plate by an inherent connection method. One end of the guide rod is connected to the rear tail plate through a sliding sleeve, and the other end is inherently connected to the push-pull plate. At the same time, the guide rod is also connected to the cylinder base through a set of guide sleeves. The push-pull plate is connected to the clamping component.

[0013] Further, the clamping component includes a clamping base, a clamping transmission lead screw pair, a motor mounting plate, a clamping motor, and clamping plates. The clamping base is fixedly arranged on the push-pull plate. The clamping transmission lead screw pair is arranged on the clamping base. The clamping motor is arranged on the side of the clamping base through the motor mounting plate and is connected to the transmission lead screw of the clamping transmission lead screw pair through a coupling. A set of symmetrically arranged lead screw nuts are provided on the lead screw of the clamping transmission lead screw pair, and a set of clamping plates are also provided and are respectively fixedly connected to the lead screw nut seats on a set of lead screw nuts. The clamping plates are used to clamp the mold body.

[0014] Further, clamping blocks are also provided on the mold body, and grooves matching the clamping plates are provided on both sides of the clamping blocks.

[0015] Further, there are two sets of the guide rods, which are arranged in a matrix on the oil cylinder base, and there are two sets of the waist-shaped through holes, which are arranged in a matrix on the connecting ear.

[0016] Further, there are two sides of the screw rod transmission assembly, which are respectively arranged on both sides of the mold body, and the two connecting ears are respectively connected to the push-pull transmission screw pair on one set of the screw rod transmission assemblies.

[0017] Further, a plurality of reinforcing ribs are further arranged between the connecting ear and the mold body.

[0018] (III) Beneficial effects

[0019] The beneficial effects of the present utility model are as follows:

[0020] By arranging the clamping assembly, the mold body can be automatically clamped or loosened. At the same time, by arranging the push-pull assembly to drive the movement of the clamping assembly, the movement of the mold body is realized, and the functions of automatic control of mold closing and mold removal are realized. At the same time, by arranging the screw rod transmission assembly, a force can be further applied to both sides of the mold body to assist the clamping assembly in mold closing and mold removal, and the stability of the mold removal and mold closing processes is further improved by arranging the push-pull transmission screw pair, and the probability of the mold body scratching the casting is reduced. Description of the drawings

[0021] Figure 1 is a perspective view of the present utility model;

[0022] Figure 2 is a schematic structural view of the screw rod transmission assembly of the present utility model;

[0023] Figure 3 is a schematic structural view of the push-pull assembly of the present utility model;

[0024] Figure 4 is a schematic structural view of the clamping assembly of the present utility model;

[0025] Figure 5 is a schematic structural view of the mold body of the present utility model.

[0026] Markings in the figure: 1 - casting platform, 2 - mold body, 3 - push-pull device, 4 - connecting ear, 5 - waist-shaped through hole, 6 - screw rod transmission assembly, 7 - clamping block, 8 - groove, 9 - reinforcing rib;

[0027] 3a - push-pull assembly, 3aa - hydraulic cylinder, 3ab - oil cylinder base, 3ac - push-pull plate, 3ad - guide rod, 3ae - rear tail plate, 3af - dust-proof plate;

[0028] 3b - Clamping assembly, 3ba - Clamping base, 3bb - Clamping drive screw pair, 3bc - Motor mounting plate, 3bd - Clamping motor, 3be - Clamping plate;

[0029] 6a - Driving motor, 6b - Push - pull drive screw pair, 6c - Connecting plate, 6d - Screw base. Detailed implementation mode

[0030] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying 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 of the present utility model.

[0032] Please refer to Figures 1-5 An automatic mold - removing device for a gravity casting machine as shown. An automatic mold - removing device for a gravity casting machine includes a casting platform 1 arranged on the casting equipment and a set of left - and - right symmetric mold bodies 2 for casting. The mold bodies 2 are arranged on the casting platform 1, and a set of symmetric push - pull devices 3 are arranged on the casting platform 1. The push - pull devices 3 are used to control the movement of the mold bodies 2, so as to push the two mold bodies 2 to achieve relative movement when the two mold bodies 2 are closed, and pull the mold bodies 2 to move in the opposite direction when the two mold bodies 2 are disassembled. The push - pull device 3 includes a push - pull assembly 3a and a clamping assembly 3b. The clamping assembly 3b is arranged on the push - pull assembly 3a and can move back and forth under the control of the push - pull assembly 3a.

[0033] The push-pull assembly 3a comprises a hydraulic cylinder 3aa, a cylinder base 3ab, a push-pull plate 3ac, a guide rod 3ad, a rear tail plate 3ae and a dustproof plate 3af. The cylinder base 3ab is fixedly arranged on the casting platform 1. The cylinder body of the hydraulic cylinder 3aa is fixedly connected to the cylinder base 3ab, and the telescopic rod of the hydraulic cylinder 3aa passes through the cylinder base 3ab and is fixedly connected to the push-pull plate 3ac. One end of the dustproof plate 3af is fixedly connected to the upper end surface of the cylinder base 3ab, and the other end is connected to the rear tail plate 3ae by an inherent connection. One end of the guide rod 3ad is connected to the rear tail plate 3ae through a sliding sleeve, and the other end is inherently connected to the push-pull plate 3ac. At the same time, the guide rod 3ad is also connected to the cylinder base 3ab through a set of guide sleeves, and the push-pull plate 3ac is connected to the clamping assembly 3b. When the push-pull assembly 3a works, the hydraulic cylinder 3aa starts the telescopic rod to extend, pushes the push-pull plate 3ac to move, and then realizes the movement of the clamping assembly 3b, and finally achieves the purpose of automatically moving the mold body 2. At the same time, the mold body 2 is connected to the push-pull device 3, and can move forward and backward under the control of the push-pull device 3. The two sides of the mold body 2 are provided with connecting ears 4, and the connecting ears 4 are provided with waist-shaped through holes 5. The mold body 2 is also provided with a clamping block 7, and the two sides of the clamping block 7 are provided with grooves 8 that match the clamping plate 3be.

[0034] The casting platform 1 is also provided with a screw transmission assembly 6, which has two sides, which are respectively arranged on both sides of the mold body 2, and the two connecting ears 4 are respectively connected to a push-pull transmission screw pair 6b on a group of screw transmission assemblies 6.

[0035] The screw transmission assembly 6 comprises a driving motor 6a, a push-pull transmission screw pair 6b, a connecting plate 6c and a screw base 6d, wherein the connecting plate 6c is fixedly arranged on the screw nut seat of the transmission screw pair 6b, the push-pull transmission screw pair 6b and the driving motor 6a are arranged on the screw base 6d, the driving motor 6a is connected to the screw on the transmission screw pair 6b through a coupling, and the connecting ear 4 is connected to the connecting plate 6c through a screw passing through a waist-shaped through hole 5; when the push-pull assembly 3a is working, the screw transmission assembly 6 works synchronously, the driving motor 6a drives the push-pull transmission screw pair 6b to operate, and then through the connection between the connecting plate 6c and the connecting ear 4, the auxiliary push-pull device 3 performs the pulling work on the mold body 2. Since the screw transmission assembly 6 is symmetrically arranged in a group, the two sides of the mold body 2 are subjected to the same push-pull force at the same time, which improves the stability of the movement process of the mold body 2 and reduces the probability of the mold body scratching the casting.

[0036] The clamping assembly 3b includes a clamping base 3ba, a clamping transmission screw pair 3bb, a motor mounting plate 3bc, a clamping motor 3bd, and a clamping plate 3be. The clamping base 3ba is fixedly arranged on the push-pull plate 3ac. The clamping transmission screw pair 3bb is arranged on the clamping base 3ba. The clamping motor 3bd is arranged on the side of the clamping base 3ba through the motor mounting plate 3bc and is connected to the transmission screw of the clamping transmission screw pair 3bb through a coupling. A set of screw nuts of the clamping transmission screw pair 3bb are symmetrically arranged, and a set of clamping plates 3be are also provided and fixedly connected to the screw nut seats on a set of screw nuts respectively. The clamping plate 3be is used to clamp the mold body 2. When the clamping assembly 3b clamps the mold body 2, the clamping motor 3bd drives the clamping transmission screw pair 3bb to operate. At this time, a set of screw nut seats symmetrically arranged on the clamping transmission screw pair 3bb move towards each other, and then the clamping plate 3ba is inserted into the groove 8 on the mold body 2 to achieve the purpose of clamping the mold body 2.

[0037] Specifically, two sets of waist-shaped through holes 5 are arranged on the connecting ears 4 in a matrix arrangement. A plurality of reinforcing ribs 9 are also provided between the connecting ears 4 and the mold body 2.

[0038] Working principle: When installing the mold body, the staff only needs to fix the connecting ears 4 on the mold body 2 to the connecting plate 6c with screws. When closing the mold, the push-pull assembly 3a drives the clamping assembly 3b to move to the position of the mold body 2. The clamping assembly 3b works to clamp the mold body 2 through the cooperation of the clamping plate 3be and the groove 8. Then, the push-pull assembly 3a and the screw drive assembly 6 work synchronously to perform the mold closing operation on the two mold bodies 2.

[0039] When disassembling the mold after the casting work is completed, the push-pull assembly 3a works to move the two mold bodies 2 in opposite directions. At the same time, the screw drive assembly 6 also works synchronously to assist the push-pull assembly 3a to separate the two mold bodies 2 from the casting, achieving the purpose of automatic mold disassembly.

[0040] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0041] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic mold removal device for a gravity casting machine, comprising a casting platform (1) arranged on a casting device and a set of bilaterally symmetrical mold bodies (2) for casting, characterized in that: The mold body (2) is arranged on the casting platform (1), and a group of symmetrical push-pull devices (3) are arranged on the casting platform (1). The mold body (2) is connected to the push-pull devices (3) and can move forward and backward under the control of the push-pull devices (3). The two sides of the mold body (2) are provided with connecting ears (4), and the connecting ears (4) are provided with waist-shaped through holes (5). The casting platform (1) is also provided with a screw transmission assembly (6), and the screw transmission assembly (6) includes a drive motor (6a ), a push-pull transmission screw pair (6b), a connecting plate (6c) and a screw base (6d), wherein the connecting plate (6c) is fixedly arranged on the screw nut seat of the transmission screw pair (6b), the push-pull transmission screw pair (6b) and the driving motor (6a) are arranged on the screw base (6d), the driving motor (6a) is connected to the screw on the transmission screw pair (6b) through a coupling, and the connecting ear (4) is connected to the connecting plate (6c) through a screw passing through the waist-shaped through hole (5); The push-pull device (3) comprises a push-pull component (3a) and a clamping component (3b); the clamping component (3b) is arranged on the push-pull component (3a) and can move forward and backward under the control of the push-pull component (3a).

2. The automatic mold removal device for a gravity casting machine according to claim 1, characterized in that: The push-pull assembly (3a) comprises a hydraulic cylinder (3aa), a cylinder base (3ab), a push-pull plate (3ac), a guide rod (3ad), a rear tail plate (3ae) and a dustproof plate (3af); the cylinder base (3ab) is fixedly arranged on the casting platform (1); the cylinder body of the hydraulic cylinder (3aa) is fixedly connected to the cylinder base (3ab); and the telescopic rod of the hydraulic cylinder (3aa) passes through the cylinder base (3ab) and is fixedly connected to the push-pull plate (3ac); One end of the dustproof plate (3af) is fixedly connected to the upper end surface of the cylinder base (3ab), and the other end is connected to the rear tail plate (3ae) by an inherent connection. One end of the guide rod (3ad) is connected to the rear tail plate (3ae) by a sliding sleeve, and the other end is inherently connected to the push-pull plate (3ac). At the same time, the guide rod (3ad) is also connected to the cylinder base (3ab) by a set of guide sleeves, and the push-pull plate (3ac) is connected to the clamping assembly (3b).

3. The automatic mold removal device for a gravity casting machine according to claim 2, characterized in that: The clamping assembly (3b) comprises a clamping base (3ba), a clamping transmission screw pair (3bb), a motor mounting plate (3bc), a clamping motor (3bd) and a clamping plate (3be); the clamping base (3ba) is fixedly arranged on the push-pull plate (3ac); the clamping transmission screw pair (3bb) is arranged on the clamping base (3ba); the clamping motor (3bd) is arranged on the side of the clamping base (3ba) through the motor mounting plate (3bc), and is connected to the transmission screw of the clamping transmission screw pair (3bb) through a coupling; the screw nuts of the clamping transmission screw pair (3bb) are symmetrically arranged in a group, and the clamping plate (3be) is also provided with a group of screw nut seats respectively fixedly connected to a group of screw nuts; the clamping plate (3be) is used to clamp the mold body (2).

4. The automatic mold removal device for a gravity casting machine according to claim 3, characterized in that: The mold body (2) is also provided with a clamping block (7), and grooves (8) matching with the clamping plate (3be) are provided on both sides of the clamping block (7).

5. The automatic mold removal device for a gravity casting machine according to claim 2, characterized in that: The guide rods (3ad) are provided in two groups and are arranged in a matrix on the oil cylinder base (3ab); the waist-shaped through holes (5) are provided in two groups and are arranged in a matrix on the connecting ears (4).

6. The automatic mold removal device for a gravity casting machine according to claim 1, characterized in that: The screw transmission assembly (6) is provided with two sides, which are respectively arranged on the two sides of the mold body (2), and the two connecting ears (4) are respectively connected to the push-pull transmission screw pair (6b) on a group of the screw transmission assembly (6).

7. The automatic mold removal device for a gravity casting machine according to claim 1, characterized in that: A plurality of reinforcing ribs (9) are also provided between the connecting ear (4) and the mold body (2).

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