Demoulding machine

Abstract

The utility model relates to the field of steelmaking, in particular to a demolding machine which comprises a base, a front pushing assembly, a rear bearing assembly and a limiting connecting piece connected between the front pushing assembly and the rear bearing assembly, and the base is arranged between the front pushing assembly and the rear bearing assembly; the front pushing assembly comprises a pushing rod which can move towards the direction of the rear bearing assembly and is used for pushing the steel ingot out of the mold, a centering groove with a V-shaped top is formed in the top of the base, and an inlet for hoisting the mold is formed in at least the top of the demolding machine. The mold with the steel ingot is hoisted to the position above the demolding machine, then the mold is erected on the centering groove of the base through the inlet, so that the mold is centered relative to the demolding machine, then the steel ingot is ejected out from the rear end to the front end through the ejecting rod which is centered, and demolding can be achieved.

Description

Technical Field

[0001] This invention relates to the field of steelmaking, and in particular to a demolding machine. Background Technology

[0002] In the steelmaking process, steel ingots need to be demolded. The front of the mold is open, serving as the ejection end, while the rear has a smaller round hole to push the ingot out. Current demolding methods are all manual, involving manually pulling a suspended bar to strike the rear of the ingot, thus demolding it (see attached image). Figure 4 Due to uneven and inconsistent force, demolding often fails, resulting in poor performance. Eventually, the steel ingot cannot be pushed out and workers have to break the mold to remove it, leading to mold waste. Therefore, designing a convenient demolding device that applies even and consistent force without damaging the mold is essential. Summary of the Invention

[0003] The purpose of this invention is to provide a demolding machine.

[0004] The above-mentioned objective of the present invention is achieved through the following technical solution:

[0005] A demolding machine includes a base, a front push assembly, a rear support assembly, and a limiting connector connecting the front push assembly and the rear support assembly. The base is disposed between the front push assembly and the rear support assembly. The front push assembly includes a push rod movable toward the rear support assembly for ejecting a steel ingot from the mold. The top of the base is provided with a centering groove with a V-shaped top. The demolding machine has an inlet at least at the top for hoisting the mold in.

[0006] Preferably, the front pushing assembly includes an upright mounting base and a hydraulic cylinder mounted on the mounting base, with the pushing rod connected to the telescopic rod of the hydraulic cylinder.

[0007] Preferably, the rear support assembly includes a hollow support ring, the hollow cavity of which is used to accommodate the front end of the pushed-out steel ingot.

[0008] Preferably, the rear support assembly includes a support plate, and the support ring is fixed to the inner end face of the support plate.

[0009] Preferably, the base includes a base plate and a plurality of bottom support members fixed on the base plate, the centering groove is formed on the bottom support members, and the centering grooves on the plurality of bottom support members are arranged coaxially in sequence.

[0010] Preferably, the limiting connector consists of multiple connecting rods with both ends connected between the mounting base of the front pushing assembly and the support plate of the rear supporting assembly, and the portion of the connecting rods extending out of the mounting base and the support plate is fixed by bolts.

[0011] Preferably, the bottom support member near the rear support assembly is integrally connected to the support ring, thereby forming a limiting step between the inner ring wall of the support ring and the centering groove on the connected bottom support member.

[0012] Preferably, the demolding machine also includes a lifting component located at the bottom of the base.

[0013] Beneficial effects:

[0014] 1. This application achieves demolding by hoisting the mold with steel ingots above the demolding machine, then placing the mold on the centering groove of the base through the inlet frame, thereby centering the mold relative to the demolding machine, and then pushing the steel ingots out from the rear end to the front end by the centering push rod.

[0015] 2. This application has a simple structure, is easy to operate, is stable to use, is easy to assemble and disassemble, has low cost, and is safe to use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this application;

[0017] Figure 2 This is a partial structural diagram of this application;

[0018] Figure 3 This is a structural schematic diagram of the lifting component of this application;

[0019] Figure 4 This is a schematic diagram of the existing technology of manually pulling a round bar and knocking it to release the mold. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0022] Example 1:

[0023] A demolding machine includes a base 1, a front pushing assembly 2, a rear support assembly 3, and a limiting connector 4 connecting the front pushing assembly and the rear support assembly. The base is located between the front pushing assembly and the rear support assembly. The front pushing assembly includes a pushing rod 21 movable towards the rear support assembly for ejecting a steel ingot from a mold 5. The top of the base has a V-shaped centering groove 11. The demolding machine has an inlet 6 at least at the top for hoisting the mold in. The front pushing assembly includes an upright mounting base 22 and a hydraulic cylinder 23 mounted on the mounting base. The pushing rod is connected to the telescopic rod of the hydraulic cylinder.

[0024] This application achieves demolding by hoisting the mold 5 containing the steel ingot 51 above the demolding machine, then placing it on the centering groove of the base through the inlet frame, thus centering the mold relative to the demolding machine. Demolding is then achieved by using a push rod positioned at the center to push the steel ingot from the rear end to the front end. The push rod can be a direct extension rod of the hydraulic cylinder or a component connected to the front end of the extension rod. The push rod extends into the mold through a through-hole at the rear end and applies force to the rear end of the steel ingot. The hydraulic cylinder continues to apply stable pressure, thereby removing the steel ingot from the mold. Once the steel ingot is separated from the mold, it can be easily removed. Demolding is stable, convenient, and does not damage the mold.

[0025] Furthermore, the demolding method of this application prevents the loosened steel ingot from rushing forward too quickly and causing an uncontrollable situation, thus changing the situation where the steel ingot might be pushed out by excessive force when manually hammered.

[0026] Example 2:

[0027] The difference from the above embodiments lies in that the rear support assembly includes a hollow support ring 31, the hollow cavity of which is used to accommodate the front end of the pushed-out steel ingot. The rear support assembly includes a support plate 32, and the support ring is fixed to the inner end face of the support plate. The support ring can be recessed and embedded in the support plate, or it can protrude from the surface of the support plate.

[0028] During placement, the front edge of the mold rests against the support ring. The diameter of the hollow cavity is larger than the cross-sectional size of the steel ingot 51 inside the mold. This ensures that when the mold is firmly and securely against the support ring, the steel ingot can enter the hollow cavity when it is ejected, guaranteeing sufficient space for the ingot to move forward smoothly and demold smoothly. The support plate can limit the movement of the steel ingot, making demolding more controllable and stable, and reducing the risk of accidents.

[0029] Example 3:

[0030] The difference from the above embodiments is that the base includes a base plate 12 and a plurality of bottom support members 13 fixed on the base plate. The centering groove is formed on the bottom support member, and the centering grooves on the plurality of bottom support members are arranged coaxially and sequentially. This application can directly use a plurality of bottom support members, but for greater stability and better overall stability, a base plate can be set, and then the bottom support members can be arranged on the base plate. The V-shaped centering groove can automatically center the mold placed on it, thereby facilitating the top push rod to apply force to center the steel ingot.

[0031] Example 4:

[0032] The difference from the above embodiments lies in that the limiting connector 4 consists of multiple connecting rods connected at both ends to the mounting base 22 of the front pushing assembly 2 and the support plate 32 of the rear supporting assembly 3, with the portions of the connecting rods extending out of the mounting base 22 and the support plate 32 fixed by bolts. The connecting rods allow control of the distance between the front pushing assembly and the rear supporting assembly, ensuring stable and effective demolding. The distance between the front pushing assembly and the rear supporting assembly can also be designed to be adjustable as needed, ensuring convenient assembly and disassembly between them. Since there are generally few mold specifications for steel ingots, the distance between the front pushing assembly and the rear supporting assembly can be fixed, or multiple mold specifications can be supported.

[0033] Example 5:

[0034] The difference from the above embodiment is that the bottom support member near the rear support assembly is integrally connected to the support ring, thereby forming a limiting step 14 between the inner ring wall of the support ring and the centering groove on the connected bottom support member. This structure ensures that the front end of the mold has stable support and limiting, preventing one end of the mold from tilting up during demolding and affecting normal operation. This guarantees operational stability. Of course, the support ring can be connected to the bottom support member but not to the support plate 32 of the rear support assembly 3, or it can be connected only to the support plate 32 of the rear support assembly 3, or it can be connected to both.

[0035] Example 6:

[0036] The difference from the above embodiments is that the demolding machine also includes a lifting component 7 located at the bottom of the base. Since there are generally not many specifications for steel ingots, this application can be designed to correspond one-to-one with molds of different specifications, or it can be designed to accommodate molds of different specifications through an adjustable base. This allows for efficient pushing by adjusting the height of the base to ensure alignment between the mold and the push rod.

[0037] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A stripper characterized by: The device comprises a base (1), a front pushing assembly (2), a rear supporting assembly (3) and a limiting connecting piece (4) connecting the front pushing assembly and the rear supporting assembly, the base is arranged between the front pushing assembly and the rear supporting assembly; the front pushing assembly comprises a pushing rod (21) which can move towards the rear supporting assembly and is used for pushing the steel ingot out of the mold (5), the top of the base is provided with a centering groove (11) in V shape, and the top of the demolding machine is provided with an entrance (6) for lifting the mold.

2. The stripper according to claim 1, characterized in that: The front pushing assembly comprises a vertical mounting seat (22) and a hydraulic cylinder (23) arranged on the mounting seat, and the pushing rod is connected to the telescopic rod of the hydraulic cylinder.

3. The stripper as claimed in claim 1, wherein: The rear supporting assembly comprises a hollow supporting ring (31), and the hollow cavity of the supporting ring is used for accommodating the front end of the steel ingot pushed out.

4. The stripper of claim 3 wherein: The rear supporting assembly comprises a supporting plate (32), and the supporting ring is fixedly arranged on the inner end face of the supporting plate.

5. The stripper of claim 3 wherein: The base comprises a bottom plate (12) and a plurality of bottom support pieces (13) fixedly arranged on the bottom plate, the centering groove is arranged on the bottom support piece, and the centering grooves on the plurality of bottom support pieces are coaxially arranged and sequentially arranged.

6. The stripper of claim 5 wherein: The limiting connecting piece (4) is a plurality of connecting rods which are respectively connected between the mounting seat (22) of the front pushing assembly (2) and the supporting plate (32) of the rear supporting assembly (3), and the parts of the connecting rods which pass through the mounting seat (22) and the supporting plate (32) are fixed by bolts.

7. The stripper of claim 5 wherein: The bottom support piece close to the rear supporting assembly is integrally connected with the supporting ring, so that the limiting step (14) is formed between the inner ring wall of the supporting ring and the centering groove on the connected bottom support piece.

8. The stripper of claim 1 wherein: The demolding machine further comprises a jacking component (7) arranged at the bottom of the base.

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