Rapid demolding mechanism for casting

Abstract

The utility model relates to the technical field of casting demolding, and provides a casting rapid demolding mechanism which comprises a support. The sliding seat is slidably arranged at the top of the bracket; the number of the swing clamping pieces is multiple, the multiple swing clamping pieces are independently arranged on the sliding base in a rotating mode, and the multiple swing clamping pieces are matched to clamp the casting part; and the scraping part is arranged on the sliding seat in a lifting mode, and after the swing clamping rod clamps the casting part, the scraping part is used for scraping gravel on the inner wall of the casting part. By means of the technical scheme, the problems that in the prior art, when a traditional cylindrical or conical casting is demoulded, the interior of the casting needs to be cleaned, and time and labor are wasted are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of casting demoulding, in particular to a casting rapid demoulding mechanism. Background Art

[0002] In the foundry industry, the demoulding process has always been a key link affecting production efficiency and casting quality. Traditional casting demoulding methods often rely on manual operation or relatively simple mechanical devices, which have many limitations.

[0003] During the demolding process of cylindrical or conical castings, there will be a lot of molding sand on the cylindrical inner wall of the casting, which makes it difficult to demold the casting. Therefore, when demolding traditional cylindrical or conical castings, the inside needs to be cleaned, which is time-consuming and labor-intensive. Utility Model Content

[0004] The utility model provides a casting rapid demoulding mechanism, which solves the problem in the related art that when traditional cylindrical or conical castings are demoulded, the interior thereof needs to be cleaned, which is time-consuming and labor-intensive.

[0005] The technical solution of the utility model is as follows:

[0006] A casting rapid demoulding mechanism, comprising:

[0007] Bracket;

[0008] A sliding seat, slidably arranged on the top of the bracket;

[0009] There are a plurality of swing clamping members, each of which is independently rotatable and arranged on the sliding seat, and cooperates with the casting to clamp the casting;

[0010] A scraping piece is lifted and lowered on the sliding seat. After the swing clamping rod clamps the casting, the scraping piece is used to scrape off the sand and gravel on the inner wall of the casting.

[0011] Optionally, the swing clamping member includes:

[0012] A rotating plate, rotatably disposed on the sliding seat;

[0013] A column, eccentrically arranged on the rotating plate;

[0014] The clamping arm is rotatably sleeved on the column, and the clamping arm is used to abut against the inner wall of the casting.

[0015] Optionally, the scraping member includes:

[0016] A lifting rod is provided on the sliding seat;

[0017] A driver is provided at the end of the lifting rod, and the driver is located below the sliding seat;

[0018] There are a plurality of cross bars, wherein the cross bars are spaced apart and arranged on the driving end of the driver;

[0019] There are a plurality of scrapers, and one end of each cross bar away from the driver is arranged on the scraper.

[0020] Optionally, the scraping member further includes:

[0021] a cone, disposed on the driving end;

[0022] The stirring plate is arranged on the cone, and after the cone rotates, the stirring plate is used to stir the gravel.

[0023] Optionally, the cross bar is a spring bar, and the cross bar is used to drive the scraper to press against the inner wall of the casting.

[0024] Optionally, the scraper has a mounting groove, and the mounting groove is used to install the scraping block.

[0025] Optionally, the bracket includes:

[0026] base;

[0027] A stand, arranged on the base;

[0028] The track is arranged on the stand, and the sliding seat is slidably arranged on the track.

[0029] Optionally, also include:

[0030] The reinforcing rod is obliquely arranged between the track and the stand, and the reinforcing rod, the track and the stand form a triangular support.

[0031] Optionally, the base is annular and has a notch.

[0032] The working principle and beneficial effects of the utility model are as follows:

[0033] In the present invention, the swing clamp is rotated to clamp the top outer wall of the casting or abut against the top inner wall of the casting. The driving device of the sliding seat is then activated again to lift the swing clamp holding the casting to a certain height, so that the casting is separated from the lower mold. At this time, the scraper, under the action of the lifting drive device, descends into the interior of the casting and begins to scrape the inner wall of the molding sand. After scraping is completed, the scraper is now located at the bottom of the casting, so the scraper cooperates with the swing clamp to provide auxiliary support. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The preferred embodiments will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0035] Figure 1 This is a schematic structural diagram of the demoulding mechanism of the utility model from the first perspective;

[0036] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0037] Figure 3 This is a schematic structural diagram of the demoulding mechanism of the utility model from a second perspective;

[0038] Figure 4 This is a schematic diagram of the demoulding mechanism and mold position of the utility model.

[0039] In the figure: 1. bracket; 101. base; 1011. notch; 102. stand; 103. track; 104. reinforcing rod; 2. sliding seat; 3. swing clamp; 301. rotating plate; 302. clamping arm; 303. column; 4. scraper; 401. lifting rod; 402. drive; 403. cross bar; 404. scraper; 4041. mounting groove; 5. cone; 6. stirring plate; 7. mold; 8. casting. DETAILED DESCRIPTION

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.

[0041] To simplify the drawings, only the parts relevant to the utility model are schematically shown in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically shown or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0042] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0043] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0044] Reference Figures 1 to 4 , which is an embodiment of the utility model, proposes a casting rapid demoulding mechanism, including: a bracket 1; a sliding seat 2, which is slidably arranged on the top of the bracket 1; a swing clamping member 3, which has several swing clamping members 3, and the several swing clamping members 3 are independently rotatably arranged on the sliding seat 2, and the several swing clamping members 3 cooperate to clamp the casting 8; a scraper 4, which is lifted and lowered on the sliding seat 2, and after the swing clamping rod clamps the casting 8, the scraper 4 is used to scrape sand and gravel on the inner wall of the casting 8.

[0045] In the above scheme, in actual production, after a batch of cylindrical or conical castings have been cast and cooled, the upper mold 7 is opened by a lifting device, and the casting leaks out. The drive device of the sliding seat 2, such as an electric screw mechanism, is then activated, causing the sliding seat 2 to move along the track 103 of the bracket 1 to the top of the casting. Next, the swing clamp 3 is operated to rotate and clamp the top outer wall of the casting or abut against the top inner wall of the casting, depending on the actual situation. Thereafter, the drive device of the sliding seat 2 is activated again, and the swing clamp 3 holding the casting is raised to a certain height, freeing the casting from the lower mold. At this point, the scraper 4, driven by a lifting drive device (such as an electric hoist), descends into the casting and begins to scrape the inner wall of the casting. After scraping is completed, the scraper 4 is located at the bottom of the casting, thereby cooperating with the swing clamp 3 to provide auxiliary support.

[0046] Furthermore, the swing clamping member 3 includes: a rotating plate 301 rotatably disposed on the sliding seat 2; a column 303 eccentrically disposed on the rotating plate 301; and a clamping arm 302 rotatably sleeved on the column 303, the clamping arm 302 being used to abut against the inner wall of the casting 8.

[0047] In the above scheme, the rotating plate 301 is made of steel plate and mounted within a mounting seat on the sliding seat 2 via a central axis. A copper sleeve is installed between the axis and the mounting seat to facilitate the flexible rotation of the rotating plate 301. The column 303 is made of cylindrical steel and is eccentrically fixed to the upper surface of the rotating plate 301 by welding or threading. The clamping arm 302 is a metal rod with a certain curvature. A circular through-hole is machined at one end. This through-hole is clearance-fitted with the column 303, allowing the clamping arm 302 to rotate freely around the column 303. Taking a conical casting 8 as an example, when the rotating plate 301 rotates, due to the eccentric arrangement of the column 303, the clamping arm 302 changes the contact position and angle with the inner wall of the conical casting 8 as the rotating plate 301 rotates, thereby tightly contacting the inner wall at different taper positions, achieving effective clamping. For cylindrical or conical castings 8 of different specifications, the rotating connection between the clamping arm 302 and the column 303 can adapt to the changes in the curvature of the inner wall. For example, when handling a small-diameter cylindrical casting 8, the clamping arm 302 can rotate slightly around the column 303 to closely fit the inner wall. For a large-diameter, tapered casting 8, the clamping arm 302 can rotate and adjust within a wide range to accommodate changes in taper. The rotation of the rotating plate 301 is precisely controlled by a motor and gear transmission mechanism, ensuring smooth and consistent clamping of the clamping arm 302. This ensures uniform force on the casting 8 during demolding and reduces the risk of casting deformation or damage due to improper clamping.

[0048] Furthermore, the scraper 4 includes: a lifting rod 401, which is arranged on the sliding seat 2; a driver 402, which is arranged at the end of the lifting rod 401, and the driver 402 is located below the sliding seat 2; a plurality of cross bars 403, and the plurality of cross bars 403 are arranged at intervals on the driving end of the driver 402; and a plurality of scrapers 404, and the end of each cross bar 403 away from the driver 402 is arranged on the scraper 404.

[0049] In the above scheme, when the inner wall molding sand of the casting 8 is relatively stubborn, the driver 402 can be driven by a relatively high-power motor to provide sufficient torque to enable the scraper 404 to effectively scrape off the molding sand. The spring rod characteristics of the crossbar 403 can not only adapt to the shape of the inner wall, but also play a buffering role during the scraping process, preventing the scraper 404 from being damaged by rigid collision. For example, when processing a casting 8 with an uneven surface, the spring rod can automatically extend and retract according to the protrusions or depressions, ensuring that the scraper 404 always maintains moderate contact with the inner wall, improving the scraping effect while protecting the quality of the casting. The combination of multiple crossbars 403 and scrapers 404 can cover a larger area of ​​the inner wall, improve the scraping efficiency, reduce the scraping time, and thus improve the production rhythm of the entire demolding process.

[0050] Furthermore, the scraper 4 further includes: a cone 5, which is provided on the driving end; and a stirring plate 6, which is provided on the cone 5. After the cone 5 rotates, the stirring plate 6 is used to stir the gravel.

[0051] In the above solution, the rotational speed of cone 5 can be adjusted according to the compactness of the molding sand, for example, by controlling the speed of driver 402 via a frequency converter. When encountering areas of severely clumped molding sand, the rotational speed of cone 5 is increased, and stirring plate 6 generates a stronger stirring action, loosening and breaking up the molding sand, facilitating smooth scraping by scraper 404. Furthermore, the spiral design of stirring plate 6 guides the flow of molding sand in a specific direction, preventing it from splashing during the scraping process. This maintains a clean and safe work area and facilitates subsequent cleaning and recycling of the molding sand.

[0052] Furthermore, the cross bar 403 is a spring bar, and the cross bar 403 is used to drive the scraper 404 to press against the inner wall of the casting 8.

[0053] In the above embodiment, when working with castings 8 of varying inner diameters, such as a cylindrical casting 8 with an inner diameter slightly smaller than the standard size, the scraper 404 automatically adjusts its position under the action of the spring, maintaining close contact with the inner wall of the casting 8 and ensuring effective scraping. Furthermore, even if the inner wall has localized protrusions or depressions during the scraping process, the spring rod structure provides a buffering effect, preventing the scraper 404 from damaging the inner wall of the casting 8.

[0054] Furthermore, the scraper 404 has a mounting groove 4041, and the mounting groove 4041 is used to install the scraping block.

[0055] In the above embodiment, a mounting groove 4041 is machined on its surface. Mounting groove 4041 is in the shape of a dovetail groove and is used to mount a removable scraper block. The scraper block can be made of high-hardness alloy steel. Scraper blocks of different hardness and shapes are selected according to the material of different castings 8 and the characteristics of the molding sand. For example, for cast iron castings 8 with higher surface hardness, a scraper block with higher hardness and sharper cutting edge is selected and installed in mounting groove 4041 to improve the efficiency and effectiveness of sand scraping. For aluminum alloy castings 8 with smoother surfaces and softer materials, a relatively soft scraper block with a more rounded cutting edge is selected to prevent scratching the inner wall of the casting 8.

[0056] Furthermore, the bracket 1 includes: a base 101; a stand 102 disposed on the base 101; a track 103 disposed on the stand 102, and the sliding seat 2 is slidably disposed on the track 103.

[0057] In the above solution, the base 101 is made of thick steel plates welded together and has an annular structure. A notch 1011 is machined on one side to facilitate the entry and exit of the casting 8 and the access of other equipment.

[0058] Furthermore, it also includes: a reinforcing rod 104, which is obliquely arranged between the track 103 and the stand 102, and the reinforcing rod 104, the track 103 and the stand 102 form a triangular support.

[0059] In the above solution, reinforcement rod 104 is made of angle steel, with one end welded to the bottom of rail 103 and the other end welded to the side of stand 102. Reinforcement rod 104, rail 103, and stand 102 form a triangular support structure. During frequent operation of the demolding mechanism, especially when handling heavy castings 8, this triangular support structure effectively enhances the overall stability of bracket 1 and prevents deformation or displacement of rail 103 due to excessive force.

[0060] Furthermore, the base 101 is annular and has a notch 1011 .

[0061] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A casting rapid demoulding mechanism, characterized in that: include: Bracket (1); A sliding seat (2) is slidably arranged on the top of the bracket (1); There are a plurality of swing clamping members (3), each of which is independently rotatably arranged on the sliding seat (2), and the plurality of swing clamping members (3) cooperate to clamp the casting (8); A scraping member (4) is lifted and lowered on the sliding seat (2). After the swing clamping member (3) clamps the casting (8), the scraping member (4) is used to scrape sand off the inner wall of the casting (8).

2. A casting rapid demoulding mechanism according to claim 1, characterized in that: The swing clamping member (3) comprises: A rotating plate (301) is rotatably mounted on the sliding seat (2); A column (303) is eccentrically arranged on the rotating plate (301); The clamping arm (302) is rotatably sleeved on the column (303), and the clamping arm (302) is used to abut against the inner wall of the casting (8).

3. A casting rapid demoulding mechanism according to claim 1, characterized in that: The scraping member (4) comprises: A lifting rod (401) is provided through the sliding seat (2); A driver (402) is provided at the end of the lifting rod (401), and the driver (402) is located below the sliding seat (2); There are a plurality of cross bars (403), wherein the cross bars (403) are spaced apart and arranged on the driving end of the driver (402); There are a plurality of scrapers (404), and one end of each cross bar (403) away from the driver (402) is arranged on the scraper (404).

4. A casting rapid demoulding mechanism according to claim 3, characterized in that: The scraping member (4) further comprises: A cone (5) is provided on the driving end; A stirring plate (6) is provided on the cone (5); after the cone (5) rotates, the stirring plate (6) is used to stir the gravel.

5. A casting rapid demoulding mechanism according to claim 3, characterized in that: The crossbar (403) is a spring bar, and the crossbar (403) is used to drive the scraper (404) to press against the inner wall of the casting (8).

6. A casting rapid demoulding mechanism according to claim 3, characterized in that: The scraper (404) has a mounting groove (4041), and the mounting groove (4041) is used for mounting a scraping block.

7. A casting rapid demoulding mechanism according to claim 1, characterized in that: The bracket (1) comprises: Base (101); A stand (102) is provided on the base (101); The track (103) is arranged on the stand (102), and the sliding seat (2) is slidably arranged on the track (103).

8. A casting rapid demoulding mechanism according to claim 7, characterized in that: Also includes: The reinforcing rod (104) is obliquely arranged between the track (103) and the stand (102), and the reinforcing rod (104), the track (103) and the stand (102) form a triangular support.

9. A casting rapid demoulding mechanism according to claim 7, characterized in that: The base (101) is annular, and has a notch (1011).

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