Demoulding device for large forgings

Abstract

The utility model relates to the technical field of metal processing, in particular to a demolding device for large forgings, which comprises an air cylinder arranged at the center of a base, a mold arranged at the top of the air cylinder, a guide rail fixedly mounted on the periphery of the mold in a surrounding manner, and a smearing mechanism arranged at the upper part of a mounting rod, the smearing mechanism is provided with a brush used for smearing the release agent on the inner wall of the mold, and the problems that the release agent is smeared on the inner wall of the mold manually, smearing is uneven, and the smearing efficiency is low are solved. The device can quickly and uniformly smear the release agent on the inner wall of the mold, so that the lubrication degree of the inner wall of the mold is improved, a forge piece can be separated from the mold more smoothly, and surface defects such as scratches and burrs on the surface of a product are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of metal processing, in particular to a demoulding device for large forgings. Background Art

[0002] Large forgings are objects that are subjected to pressure and plastic deformation to form the required shape or suitable compression force. The forging process of large forgings is achieved by using a hammer or pressure. In the actual use of parts, large forging manufacturing is one of the key technologies in the manufacturing of major equipment. Its quality directly affects the overall level and operational reliability of major equipment. It is the foundation for the development of industries such as electricity, shipbuilding, metallurgy, petrochemicals, heavy machinery and national defense, and is the prerequisite for advanced equipment manufacturing.

[0003] The existing "die forging method" for large forgings is to use metal dies for forming. During the die forging process of metal forgings, it is first necessary to manually use a brush to apply a release agent on the inner wall of the die cavity to maintain the lubrication of the inner wall of the die cavity. Then the metal blank is placed in the inner wall of the die cavity, and then the metal blank is hammered or stamped into shape by the impact force of the hammer head or the punching pressure of the die press. However, when the release agent is manually applied to the inner wall of the die cavity, it is easy to apply it unevenly and the application efficiency is low. As a result, the lubrication of the inner wall of the die cavity is not sufficient, so that the surface of the forged part after forming rubs against the inner wall of the die cavity during demolding, thereby causing scratches, burrs and other surface defects on the surface of the forging part.

[0004] Therefore, the applicant provides a demoulding device for large forgings to solve the problems raised in the above background technology. Utility Model Content

[0005] The utility model aims to provide a demoulding device for large forgings, which solves the problems of artificially applying demoulding agent on the inner wall of the mold, uneven application, low application efficiency, etc.

[0006] In order to solve the above technical problems, the utility model provides a demolding device for large forgings, including a cylinder arranged at the center of a base, a mold arranged on the top of the cylinder, a guide rail fixedly installed around the periphery of the mold, the guide rail is slidably connected to the lower part of the mounting rod through a bracket, a coating mechanism is arranged on the upper part of the mounting rod, and a brush for coating the demolding agent on the inner wall of the mold is arranged on the coating mechanism.

[0007] A further improvement of the technical solution of the utility model is that the bottom of the mounting rod is fixed to the upper surface of the gear ring through a bracket, and the gear ring spacing is set at the outer periphery of the bottom of the mold.

[0008] A further improvement of the technical solution of the utility model is that the gear ring is meshed with the gear III, the lower surface of the gear III is fixed to the output end of the motor, and the motor is fixed on the base.

[0009] A further improvement of the technical solution of the utility model is that the smearing mechanism includes a mounting frame, a ring frame at the lower part of the mounting frame is nested in the upper part of the mounting rod, bearings I are respectively arranged at the ends of the U-shaped frame at the upper part of the mounting frame, a rotating shaft I is mounted inside the bearing I, and a gear I is arranged at the end of one side of the rotating shaft I.

[0010] A further improvement of the technical solution of the utility model is that a horizontal connecting rod is fixed in the middle of the rotating shaft I, the other end of the connecting rod is connected to the bearing II, the rotating shaft II is sleeved in the bearing II, and a gear II is arranged at the end of one side of the rotating shaft II.

[0011] A further improvement of the technical solution of the utility model is that gear II is the same in size and shape as gear I, and gear II and gear I mesh with each other.

[0012] A further improvement of the technical solution of the utility model is that: it is characterized in that a brush is arranged vertically downward at the bottom of the rotating shaft II.

[0013] A further improvement of the technical solution of the utility model is that a push plate is arranged on the top of the cylinder, the push plate is nested in the bottom of the mold, and the upper and lower surfaces of the push plate and the bottom of the mold are flush.

[0014] A further improvement of the technical solution of the utility model is that a limiting member is arranged inside the U-shaped frame on the upper part of the mounting frame, and the top surface of the limiting member abuts against a horizontal connecting rod fixed in the middle part of the rotating shaft I.

[0015] A further improvement of the technical solution of the utility model is that the height of the brush is greater than the height of the mold.

[0016] By adopting the above technical solution, the utility model has the following beneficial effects:

[0017] 1. The utility model provides a demoulding device for large forgings. A push plate is arranged at the bottom of the mold. The cylinder pushes the push plate upward, thereby pushing the metal forging in the mold upward to make it separate from the mold; the motor drives the gear III to rotate and drives the gear ring to rotate; the gear ring drives the coating mechanism to rotate, so that the brush in the coating mechanism quickly and evenly applies the release agent to the inner wall of the mold; the lubricity of the inner wall of the mold is improved, so that the forging is more smoothly separated from the mold, and the surface defects such as scratches and burrs on the surface of the product are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1It is a schematic diagram of the three-dimensional structure of a demoulding device for a large forging;

[0020] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure of the middle mold, push plate, guide rail and other components;

[0021] Figure 3 for Figure 1 Schematic diagram of the three-dimensional structure of the middle brush, mounting frame and bearing I;

[0022] Figure 4 for Figure 1 Schematic diagram of the three-dimensional structure of the middle limiter, bearing I, rotating shaft II and other components;

[0023] Figure 5 This is a state diagram of the brush and other components after the bearing I in the embodiment rotates 180 degrees counterclockwise;

[0024] Figure 6 The state diagram of the brush and other components when the shaft II rotates 180 degrees counterclockwise in the embodiment. Figure numerals: 1, base; 2, mold; 3, cylinder; 4, guide rail; 5, mounting rod; 6, coating mechanism; 7, gear ring; 8, bearing II; 9, gear III; 10, motor; 61, brush; 62, mounting frame; 63, bearing I; 64, shaft I; 65, gear I; 81, shaft II; 82, gear II; 66, limiter. DETAILED DESCRIPTION

[0025] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The present invention will be further explained below in conjunction with specific implementation methods.

[0029] like Figure 1-6 As shown, the demoulding device for a large forging provided in this embodiment includes a cylinder 3 arranged at the center position of a base 1, a mold 2 arranged on the top of the cylinder 3, a push plate 31 arranged on the top of the cylinder 3, the push plate 31 is nested in the bottom of the mold 2, and the upper and lower surfaces of the push plate 31 and the bottom of the mold 2 are flush; the cylinder 3 pushes the push plate 31 to move upward; and then drives the forging in the mold to move upward, so that the forging is separated from the mold.

[0030] The outer periphery of the mold 2 is fixedly mounted with a guide rail 4, which is slidably connected to the lower part of the mounting rod 5 through a bracket, and the bottom of the mounting rod 5 is fixed to the upper surface of the gear ring 7 through a bracket, and the gear ring 7 is arranged at a distance from the outer periphery of the bottom of the mold 2. The gear ring 7 is meshed with the gear III 9, and the lower surface of the gear III 9 is fixed to the output end of the motor 10, and the motor 10 is fixed to the base 1. The motor 10 is electrically connected to the control device (not shown in the figure). When the motor 10 is started, it drives the gear III 9 and the gear ring 7 to rotate, and then drives the mounting rod 5 to rotate along the guide rail 4.

[0031] The upper part of the mounting rod 5 is provided with a coating mechanism 6, and the coating mechanism 6 is provided with a brush 61 for coating the release agent on the inner wall of the mold 2. The coating mechanism 6 includes a mounting frame 62, and the annular frame at the lower part of the mounting frame 62 is nested in the upper part of the mounting rod 5. The ends of the U-shaped frame at the upper part of the mounting frame 62 are respectively provided with bearings I 63, and a rotating shaft I 64 is set in the bearing I 63, and a gear I 65 is set at the end of one side of the rotating shaft I 64. A horizontal connecting rod is fixed in the middle of the rotating shaft I 64, and the other end of the connecting rod is connected to the bearing II 8, and a rotating shaft II 81 is set in the bearing II 8, and a gear II 82 is set at the end of one side of the rotating shaft II 81. The gear II 82 is the same size and shape as the gear I 65, and the gear II 82 and the gear I 65 are meshed with each other. A brush 61 is set vertically downward at the bottom of the rotating shaft II 81.

[0032] A stopper 66 is provided inside the U-shaped frame at the top of the mounting frame 62, and the top surface of the stopper 66 abuts against the horizontal connecting rod fixed in the middle of the rotating shaft Ⅰ 64. The rotating shaft Ⅰ 64 set in the bearing Ⅰ 63 rotates 180 degrees, driving the rotating shaft Ⅱ 81 and the brush 61 to rotate 180 degrees, so that the stopper 66 abutting against the horizontal connecting rod fixed in the middle of the rotating shaft Ⅰ 64 is close to the top surface of the mold 2. At this time, the brush 61 is vertically upward and located above the mold 2; then the rotating shaft Ⅱ 81 rotates 180 degrees in the gear Ⅱ 82, driving the brush 61 to rotate 180 degrees. At this time, the brush 61 rotates to the inside of the mold 2, and the side surface of the brush 61 contacts the inner wall of the mold 2, and the bottom surface of the brush 61 contacts the bottom surface inside the mold 2.

[0033] In this embodiment, the height of the brush 61 is greater than the height of the mold 2. The brush 61 is in full contact with the bottom surface of the mold 2, and the mold release agent is applied to the bottom surface of the mold 2 quickly and evenly.

[0034] The working principle of the device is: first, rotate the rotating shaft I64 installed in the bearing I63 to rotate it 180 degrees counterclockwise; the rotating shaft I64 drives the rotating shaft II81 and the brush 61 to rotate 180 degrees counterclockwise; make the abutment limiter 66 of the horizontal connecting rod fixed in the middle of the rotating shaft I64 close to the top surface of the mold 2, at this time, the brush 61 is vertically upward and located above the mold 2; then the rotating shaft II81 rotates 180 degrees in the gear II82, driving the brush 61 to rotate 180 degrees, at this time, the brush 61 rotates to the inner side of the mold 2, and the side surface of the brush 61 contacts the inner wall of the mold 2, and the bottom surface of the brush 61 contacts the bottom surface inside the mold 2. After spraying the release agent on the inner wall of the mold 2 and the brush 61, start the motor 10, drive the gear III 9 and the gear ring 7 to rotate rapidly, and then drive the mounting rod 5 to rotate rapidly along the guide rail 4; the rotation of the mounting rod 5 drives the coating mechanism 6 to rotate rapidly; the brush 61 is used to apply the release agent to the inner wall of the mold 2, and the release agent on the inner wall of the mold 2 is quickly and evenly applied. This solves the problem that the release agent is easily unevenly applied and the application efficiency is low when applying the release agent to the inner wall of the mold cavity manually; while ensuring the work efficiency, it also improves the uniformity of applying the release agent to the inner wall of the mold 2. It avoids the insufficient lubrication of the inner wall of the mold 2, improves the lubrication of the inner wall of the mold, makes the forging more smoothly when it is separated from the mold 2, and reduces the surface defects such as scratches and burrs on the surface of the forging. When the release agent on the inner wall of the mold 2 has been evenly applied, the motor 10 stops rotating, the brush 61 stops applying the release agent to the inner wall of the mold 2, and the brush 61 is rotated to the initial position, that is, the downward vertical position on the outer side of the mold 2. The air cylinder 3 is started to push the push plate 31 to move upward, thereby driving the forging in the die to move upward, so that the forging is separated from the die.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A demoulding device for large forgings, characterized in that: The invention comprises a cylinder (3) arranged at the center of a base (1), a mold (2) arranged on the top of the cylinder (3), a guide rail (4) fixedly installed around the periphery of the mold (2), the guide rail (4) being slidably connected to the lower part of a mounting rod (5) via a bracket, a coating mechanism (6) being arranged on the upper part of the mounting rod (5), and a brush (61) for coating a release agent on the inner wall of the mold (2) being arranged on the coating mechanism (6).

2. A demoulding device for large forgings according to claim 1, characterized in that: The bottom of the mounting rod (5) is fixed to the upper surface of the toothed ring (7) through a bracket, and the toothed ring (7) is spaced at the outer periphery of the bottom of the mold (2).

3. A demoulding device for large forgings according to claim 2, characterized in that: The gear ring (7) is meshed with the gear III (9), the lower surface of the gear III (9) is fixed to the output end of the motor (10), and the motor (10) is fixed on the base (1).

4. A demoulding device for large forgings according to claim 1, characterized in that: The smearing mechanism (6) comprises a mounting frame (62), wherein a ring frame at the lower part of the mounting frame (62) is nested in the upper part of the mounting rod (5), bearings I (63) are respectively arranged at the ends of the U-shaped frame at the upper part of the mounting frame (62), a rotating shaft I (64) is fitted inside the bearing I (63), and a gear I (65) is arranged at the end of one side of the rotating shaft I (64).

5. A demoulding device for large forgings according to claim 4, characterized in that: A horizontal connecting rod is fixed in the middle of the rotating shaft I (64), and the other end of the connecting rod is connected to the bearing II (8). The rotating shaft II (81) is set in the bearing II (8), and a gear II (82) is set at the end of one side of the rotating shaft II (81).

6. A demoulding device for large forgings according to claim 5, characterized in that: The gear II (82) and the gear I (65) are of the same size and shape, and the gear II (82) and the gear I (65) mesh with each other.

7. A demoulding device for large forgings according to claim 5, characterized in that: A brush (61) is arranged vertically downward at the bottom of the rotating shaft II (81).

8. A demoulding device for large forgings according to claim 1, characterized in that: A push plate (31) is arranged on the top of the cylinder (3), and the push plate (31) is nested in the bottom of the mold (2). The upper and lower surfaces of the push plate (31) and the bottom of the mold (2) are flush.

9. A demoulding device for large forgings according to claim 4, characterized in that: A limiting member (66) is arranged inside the U-shaped frame at the upper part of the mounting frame (62), and the top surface of the limiting member (66) is pressed against a horizontal connecting rod fixed in the middle part of the rotating shaft I (64).

10. A demoulding device for large forgings according to claim 1, characterized in that: The height of the brush (61) is greater than the height of the mold (2).

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