A flyer casting spray mechanism

Abstract

This invention relates to the field of ingot wing equipment technology, and provides a spraying mechanism for ingot wing casting, including an outer frame, an inner frame, and a hollow turntable; one end of the inner frame is rotatably mounted on the outer frame, and a sliding shaft is provided on the inner frame, with a slider slidably mounted on the sliding shaft; the hollow turntable is rotatably mounted on the outer frame, and a radially arranged strip hole is opened on the end face of the hollow turntable, with the slider embedded and slidably mounted in the strip hole along its length; a drive disk is provided inside the hollow turntable, and a wedge block extending into the hollow turntable is connected to the bottom of the slider, with a wedge surface corresponding to and cooperating with the wedge block on the periphery of the drive disk; the drive disk is vertically and vertically mounted inside the hollow turntable to drive the slider to slide radially along the strip hole through the wedge surface.

Description

Technical Field

[0001] This invention relates to the field of ingot wing equipment technology, and more specifically to a spraying mechanism for ingot wing casting. Background Technology

[0002] In existing die-casting machine demolding spraying operations, a swing spraying mechanism is typically integrated at the end of the actuator to achieve comprehensive coverage of the mold cavity surface. Traditional swing mechanisms are mainly divided into two categories: one is a fixed-amplitude mechanical swing, which has a simple structure but cannot adapt to complex and varied deep mold cavities, easily causing localized over-spraying or missed areas; the other is a servo motor-based dynamic compensation mechanism, which dynamically adjusts the sweeping frequency and amplitude by adding a servo motor to the end of the nozzle. However, in actual die-casting production environments, the die-casting cycle is extremely short. When the nozzle performs the sweeping action, the power cable and signal cable connected to the end motor need to undergo high-frequency, large-amplitude reciprocating bending. Under long-term alternating stress, the copper core inside the cable is prone to physical fatigue fracture or electrical short circuit due to insulation wear. Furthermore, the excessive load on the nozzle end increases the system's motion inertia, increasing the reversing impact during high-frequency sweeping, which not only reduces the mechanism's lifespan but also limits further increases in sweeping speed. Therefore, we propose a spraying mechanism for die casting. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the present invention provides a spraying mechanism for ingot wing casting, which overcomes the shortcomings of the prior art, has a reasonable design and compact structure, and solves the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A spraying mechanism for ingot wing casting includes an outer frame, an inner frame, and a hollow turntable;

[0006] One end of the inner frame is rotatably mounted on the outer frame. A sliding shaft is provided on the inner frame, and a slider is slidably mounted on the sliding shaft.

[0007] The hollow turntable is rotatably mounted on the outer frame, and a radially arranged strip hole is opened on the end face of the hollow turntable. The slider is embedded in and can slide along the length direction in the strip hole.

[0008] The hollow turntable has a drive disk inside, and the bottom of the slider is connected to a wedge block that extends into the hollow turntable. The drive disk has a wedge surface that corresponds to and cooperates with the wedge block. The drive disk is vertically mounted inside the hollow turntable so as to drive the slider to slide radially along the strip hole through the wedge surface.

[0009] Preferably, the inner frame is rotatably mounted on the outer frame via a mounting shaft, and one end of the inner frame away from the sliding shaft is connected to a connecting rod extending to both sides. Multiple nozzles for spraying release agent are arranged sequentially along the direction of the connecting rod.

[0010] Preferably, both sides of the wedge block are connected with protruding ridges, and the inner wall of the strip hole is provided with a groove with the same length as the strip hole, and the protruding ridge is slidably embedded in the groove.

[0011] Preferably, a spring is connected between the inner wall end of the slot and the slider, and the spring is arranged along the length direction of the slot.

[0012] Preferably, a hollow rod is coaxially connected to the bottom of the hollow turntable, and a spindle is connected to the bottom of the drive disc. The outer wall of the spindle is threadedly connected to the inner wall of the hollow rod.

[0013] Preferably, a nylon anti-loosening thread is provided on the inner wall of the top of the hollow rod, which is screwed to the mandrel.

[0014] This invention provides a spraying mechanism for ingot casting. It has the following beneficial effects:

[0015] 1. This invention transfers the power source for driving the high-frequency sweeping of the nozzle from the swing execution end to the hollow turntable at the bottom by embedding the slider in the strip hole of the hollow turntable and sliding it on the sliding shaft of the inner frame. This allows the nozzle to perform the sweeping action without driving any power cable or signal cable to perform high-frequency, large-amplitude reciprocating bending, thus completely eliminating the problem of electrical short circuit caused by physical fatigue fracture of the copper core of the cable or wear of the insulation layer under long-term alternating stress.

[0016] 2. Because the heavy drive motor is removed from the actuator end, the oscillating component retains only the inner frame and the nozzle, significantly reducing the load on the nozzle end. This not only effectively reduces the mechanical impact of reversal during high-frequency oscillation and improves the overall service life of the mechanism, but also breaks the physical inertia limitation for further increasing the spraying oscillation speed.

[0017] 3. This invention ingeniously incorporates a liftable drive disc inside a hollow turntable, utilizing the wedge-shaped surface on the periphery of the drive disc to engage with the wedge-shaped block at the bottom of the slider. In die-casting production, by controlling the raising and lowering of the drive disc within the hollow turntable, the radial position of the slider within the slot can be changed, dynamically altering the eccentricity and thus achieving stepless adjustment of the nozzle sweep amplitude. This avoids the localized over-spraying or missed areas caused by fixed mechanical oscillation, and eliminates the need for a complex servo compensation system at the end. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2This is a schematic diagram of the present invention with the inner frame removed;

[0020] Figure 3 This is a schematic diagram of the present invention with the inner and outer frames removed;

[0021] Figure 4 For the present invention Figure 3 A three-dimensional cross-sectional view;

[0022] Figure 5 For the present invention Figure 3 Partial schematic diagram;

[0023] Figure 6 For the present invention Figure 4 A partial schematic diagram.

[0024] In the diagram: 1. Outer frame; 11. Mounting shaft; 2. Inner frame; 21. Sliding shaft; 22. Connecting rod; 23. Nozzle; 3. Slider; 31. Wedge block; 32. Raised ridge; 4. Hollow turntable; 41. Strip hole; 42. Groove; 43. Spring; 44. Nylon anti-loosening thread; 5. Drive disc. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, what is described is only a part of this invention, not all of it. All other works obtained by those skilled in the art based on this invention without inventive effort are within the scope of protection of this invention.

[0026] See attached document Figures 1-6 A spraying mechanism for ingot casting includes an outer frame 1 and an inner frame 2. One end of the inner frame 2 is rotatably mounted on the mounting shaft 11 of the outer frame 1, and a slider 3 is slidably sleeved on a sliding shaft 21 in the middle of the inner frame 2 to achieve radial relative motion constraint between the slider 3 and the inner frame 2. The other end of the inner frame 2 away from the sliding shaft 21 is connected to a connecting rod 22 extending to both sides, and a plurality of nozzles 23 are arranged at intervals along the extension direction of the connecting rod 22 for spraying a release agent onto the mold cavity.

[0027] A hollow turntable 4 is rotatably mounted on the outer frame 1 on the side away from the mounting shaft 11. The hollow rod at the bottom of the hollow turntable 4 is driven to rotate by an external rotary drive source. The hollow turntable 4, together with the drive disk 5 screwed inside it, forms a precise axial lifting and lowering adjustment mechanism, which together realizes the dynamic adjustment of the radial position of the slider 3;

[0028] Specifically: A radially arranged strip-shaped hole 41 is provided on the top plane of the hollow turntable 4. The lower half of the slider 3 is embedded in the strip-shaped hole 41 and can slide along the length direction of the strip-shaped hole 41. A wedge-shaped block 31 extending into the inner bottom wall of the hollow turntable 4 is integrally connected to the bottom of the slider 3. To ensure the smoothness of sliding, protruding ribs 32 are connected to both sides of the wedge-shaped block 31. Correspondingly, a groove 42 with the same length as the strip-shaped hole 41 is opened inward on the inner side wall of the strip-shaped hole 41, and the protruding rib 32 is embedded in the groove 42 for corresponding sliding fit. A spring 43 is also connected between the inner end of the strip-shaped hole 41 and the slider 3. The spring 43 is arranged along the length direction of the wedge-shaped block 31, that is, the radial direction of the hollow turntable 4, to provide the slider 3 with a reset pulling force towards the center of the turntable.

[0029] A mandrel is connected to the center of the bottom of the drive disk 5. The outer wall of the mandrel is threadedly connected to the inner wall of the hollow rod of the hollow turntable 4. The peripheral edge of the drive disk 5 has a beveled surface that is fitted and corresponding to the inclined surface of the wedge block 31. To prevent the mandrel from slipping out of its thread and screwing into the hollow rod of the hollow turntable 4 under equipment vibration or gravity, a nylon anti-loosening thread 44 is provided on the top inner wall of the hollow rod of the hollow turntable 4, which is threaded to the mandrel of the drive disk 5.

[0030] During operation, the external main motor drives the hollow turntable 4 to rotate at a constant speed. Since the slider 3 is eccentrically set on the hollow turntable 4 and simultaneously slides on the sliding shaft 21 of the inner frame 2, the circular motion of the hollow turntable 4 is converted into the reciprocating oscillation of the inner frame 2 around the mounting shaft 11 through the slider 3, thereby driving the end nozzle 23 to perform sweeping spraying.

[0031] When it is necessary to change the sweeping amplitude, simply activate the external auxiliary adjustment motor, which will drive the hollow rod of the hollow turntable 4 to produce a slight rotation. Since the spindle of the drive disc 5 is threadedly connected to the hollow rod, the rotation of the hollow rod will force the drive disc 5 to move up and down within the hollow turntable 4.

[0032] When the drive disk 5 rises, the inclined edge of its periphery pushes the wedge block 31 to move outward against the tension of the spring 43, that is, away from the center of the turntable, thereby increasing the eccentricity of the slider 3 on the hollow turntable 4, and thus increasing the swing amplitude of the inner frame 2 and the nozzle 23; conversely, when the drive disk 5 falls, under the tension of the spring 43, the slider 3 moves closer to the center of the turntable, the eccentricity decreases, and the swing amplitude becomes smaller.

[0033] By completely relocating the drive source to the bottom of the fixed hollow turntable 4, the problem of cable reciprocating bending caused by high-frequency oscillation at the end is eliminated. At the same time, only the inner frame 2 and the nozzle 23 are retained at the end that performs the sweeping action, which effectively solves the problems of excessive load on the nozzle end, large system motion inertia, and increased reversing impact, and greatly improves the service life of the mechanism and the response speed of high-frequency sweeping.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] The above description is only used to illustrate the technical solutions of the present invention, and is not intended to limit them. Although the present invention has been described in detail with reference to the foregoing, those skilled in the art should understand that modifications can still be made to the foregoing technical solutions, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A spraying mechanism for ingot casting, comprising an outer frame (1), characterized in that: It also includes an inner frame (2) and a hollow turntable (4); One end of the inner frame (2) is rotatably mounted on the outer frame (1), and a sliding shaft (21) is provided on the inner frame (2). A slider (3) is slidably mounted on the sliding shaft (21). The hollow turntable (4) is rotatably mounted on the outer frame (1), and a radially arranged strip hole (41) is provided on the end face of the hollow turntable (4). The slider (3) is embedded in and can slide along the length direction in the strip hole (41). The hollow turntable (4) is equipped with a drive disk (5), and the bottom of the slider (3) is connected to a wedge block (31) extending into the hollow turntable (4). The drive disk (5) is provided with a wedge surface that corresponds to and cooperates with the wedge block (31) on its periphery. The drive disk (5) is vertically and vertically arranged in the hollow turntable (4) so ​​as to drive the slider (3) to slide radially along the strip hole (41) through the wedge surface.

2. The spraying mechanism for ingot wing casting as described in claim 1, characterized in that: The inner frame (2) is rotatably mounted on the outer frame (1) via the mounting shaft (11). One end of the inner frame (2) away from the sliding shaft (21) is connected to a connecting rod (22) extending to both sides. Multiple nozzles (23) for spraying release agent are arranged sequentially along the direction of the connecting rod (22).

3. The spraying mechanism for ingot wing casting as described in claim 1, characterized in that: Both sides of the wedge block (31) are connected with protruding ribs (32), and the inner wall of the strip hole (41) is provided with a groove (42) with the same length as the strip hole (41), and the protruding ribs (32) are slidably embedded in the groove (42).

4. The spraying mechanism for ingot wing casting as described in claim 1, characterized in that: A spring (43) is connected between the inner wall end of the strip hole (41) and the slider (3), and the spring (43) is arranged along the length direction of the strip hole (41).

5. The spraying mechanism for ingot wing casting as described in claim 1, characterized in that: A hollow rod is coaxially connected to the bottom of the hollow turntable (4), and a spindle is connected to the bottom of the drive disc (5). The outer wall of the spindle is threadedly connected to the inner wall of the hollow rod.

6. The spraying mechanism for ingot wing casting as described in claim 5, characterized in that: A nylon anti-loosening thread (44) is provided on the inner wall of the top of the hollow rod to be screwed to the mandrel.

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