Casting riser removing line

Abstract

The utility model relates to the technical field of casting machining, in particular to a casting riser removing line which adopts a feeding conveying device to continuously feed castings, so that assembly line type production is realized, and the production efficiency is ensured. The position of the casting is adjusted through the rotating table, a plurality of risers on the casting can be jacked off by the jacking mechanism one by one, the overall structure is simpler, and the equipment cost is reduced. And meanwhile, the jacking mechanism can eject the casting without the dead head out of the rotating table, so that a position is reserved for the next casting, and two purposes are achieved. In addition, the feeding mechanism is designed to serve as an auxiliary feeding structure between the feeding conveying device and the rotating table, and therefore it can be guaranteed that the castings can be accurately transferred to the rotating table from the feeding conveying device, and it is guaranteed that the castings can be jacked and pressed by the jacking and pressing mechanism in the later period. The casting riser removing line adopts an assembly line type processing mode, is suitable for automatic production, and reduces the labor intensity.

Description

Technical Field

[0001] This utility model relates to the field of casting processing technology, and in particular to a casting riser removal line. Background Technology

[0002] After casting is completed, the gating system and riser need to be separated from the casting. Currently, the main methods used to separate the gating system and riser from the casting are hammering, breaking, and cutting. Among these methods, hammering is the simplest. Traditional hammering relies on manual hammering, which is labor-intensive and requires careful control of the hammering angle and force. Breaking generally requires the use of specialized casting gating system separation pliers, such as the separation pliers with patent number 202020402781.8. This type of specialized pliers is hydraulically driven and separates the gating system and riser through a spreading nozzle. However, in actual use, this device is heavy and can only be operated by hand, resulting in very high labor intensity and requiring significant arm strength from the operator. The cutting method basically involves workers using hand-held cutting equipment to cut the connection between the riser and the casting, while simultaneously grinding it. This method results in a neat riser, but the overall labor intensity is high, the processing space is easily limited, and the requirements for personnel are high, making it unsuitable for assembly line production. For example, patent CN202111400541.X - A small automated casting riser removal device.

[0003] In actual continuous production processes, risers are typically removed by hammering, followed by centralized grinding, because this method is simple to operate and more suitable for assembly line production. Currently, there are very few automated lines on the market that use hammering to remove risers from castings. To adapt to assembly line casting production, this application is proposed based on this principle. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a casting riser removal line, comprising:

[0005] frame;

[0006] A feeding and conveying device, which is installed on the frame, is used to transport castings;

[0007] A rotary table, which is mounted on the frame;

[0008] A feeding mechanism, which is mounted on the frame, is used to feed the castings conveyed by the feeding conveyor into the rotary table;

[0009] A pressing mechanism, mounted on the frame, is capable of breaking off risers on castings on the rotary table.

[0010] Furthermore, the pressing mechanism includes a hinged seat, a pressing cylinder, and a pressing head disposed on the telescopic end of the pressing cylinder. The hinged seat is disposed on the frame, and the mounting end of the pressing cylinder is hinged to the hinged seat. A portion of the side of the pressing cylinder rests on the frame. A limit stop is provided on the end of the frame away from the pressing cylinder. The pressing cylinder can push the casting on the rotary table and press it against the limit stop through the pressing head until the riser is broken.

[0011] Furthermore, the frame is provided with a support seat for supporting the outer wall of the top pressure cylinder near the top pressure head.

[0012] Furthermore, the feeding mechanism includes a mounting bracket, a feeding cylinder mounted on the mounting bracket, and a sliding seat slidably mounted on the mounting bracket. The mounting bracket is located at the output end of the frame of the feeding conveying device. The telescopic end of the feeding cylinder is hinged to the sliding seat. A push arm is hinged to the sliding seat. The push arm can swing relative to the sliding seat along the extension direction of the feeding cylinder. A limit block is provided on the sliding seat. The limit block can restrict the push arm from swinging from the vertical position to the horizontal position of the end where the feeding cylinder is mounted.

[0013] Furthermore, a guide arc surface is provided on the side of the lower end of the push arm near the end where the feeding cylinder is installed.

[0014] Furthermore, a first position sensor is provided on the mounting bracket. The first position sensor is located in the area where the sliding seat is located after the feeding cylinder has reached its limit of retraction. The air supply device connected to the feeding cylinder is electrically connected to the first position sensor.

[0015] Furthermore, a worktable is provided on the end of the frame at the discharge end of the feeding conveyor. The worktable is provided with mounting holes, and the rotary table is rotatably installed in the mounting holes. The table surface of the worktable and the top surface of the rotary table are coplanar. The limiting stop is provided on the end of the worktable away from the top pressure cylinder.

[0016] Furthermore, a roller is rotatably mounted on the end of the workbench near the discharge end of the feeding conveyor.

[0017] Furthermore, a plurality of drop holes are provided on the side of the worktable away from the top pressing mechanism, and the diameter of any one of the drop holes is smaller than the diameter of the casting.

[0018] Furthermore, a second position sensor is provided above the rotating table on the frame, and the second position sensor is electrically connected to the pressing mechanism.

[0019] Compared to existing technologies, the advantages of this invention are as follows: The casting riser removal line of this invention uses a feeding conveyor for continuous feeding of castings, achieving assembly line production and ensuring production efficiency. By adjusting the position of the casting using a rotary table, multiple risers on the casting can be broken off one by one by the pressing mechanism, resulting in a simpler overall structure and reduced equipment costs. Simultaneously, the pressing mechanism can also push the casting with the removed risers off the rotary table, making room for the next casting, achieving two goals at once. Furthermore, a feeding mechanism is designed as an auxiliary feeding structure between the feeding conveyor and the rotary table, ensuring that the casting can be accurately transferred from the feeding conveyor to the rotary table, guaranteeing that it can be pressed down by the pressing mechanism later. The casting riser removal line adopts an assembly line processing method, suitable for automated production, reducing labor intensity. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the riser removal line in the casting provided by an embodiment of the present utility model;

[0022] Figure 2 This is a partial structural diagram of the riser removal line in a casting provided by an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the feeding and conveying device provided in an embodiment of the present utility model;

[0024] Figure 4 This is a partial structural schematic diagram of the feeding mechanism provided in an embodiment of the present utility model.

[0025] Reference numerals: Frame 10, Support base 11, Worktable 12, Mounting hole 13, Roller 14, Drop hole 15, Limiting stop 16, Second position sensor 17, Feeding conveyor 20, Rotary table 30, Feeding mechanism 40, Mounting bracket 41, Feeding cylinder 42, Sliding seat 43, Pushing arm 44, Limiting block 45, Guide arc surface 46, First position sensor 47, Pressing mechanism 50, Hinge seat 51, Pressing cylinder 52, Pressing head 53. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. In the description of the embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0027] Reference Figures 1 to 4 As shown, this utility model provides a casting riser removal line, including a frame 10, a feeding conveyor 20, a rotary table 30, a feeding mechanism 40, and a pressing mechanism 50; the feeding conveyor 20 is installed on the frame 10 for conveying castings; the rotary table 30 is installed on the frame 10; the feeding mechanism 40 is installed on the frame 10 for feeding the castings conveyed by the feeding conveyor 20 onto the rotary table 30; the pressing mechanism 50 is installed on the frame 10 and can break off the risers on the castings on the rotary table 30.

[0028] Specifically, the feeding conveyor 20 can be a conventional plate chain conveyor belt, which can support the castings, be wear-resistant, and prevent debris from falling from the castings, keeping the environment clean. Alternatively, the structure described in patent CN201621325077.7 - A Plate Chain Device for Wood Conveying - can also be used, but will not be detailed here. The pressing mechanism 50 can be a conventional hydraulic cylinder or a structure where a motor drives an eccentric hammer via a cam, primarily to break the risers on the castings. In this application, the feeding mechanism 40 mainly transfers the castings from the feeding conveyor 20 to the rotary table 30. This can be achieved using a conventional robotic arm structure or a pushing structure; since the castings are relatively heavy, a pushing structure is preferred. In this application, the rotary table 30 can be directly connected to other conveyor lines, such as the grinding station, which facilitates subsequent casting grinding work.

[0029] This casting riser removal line uses a feeding conveyor 20 for continuous feeding of castings, achieving assembly line production and ensuring production efficiency. The rotary table 30 adjusts the position of the castings, allowing multiple risers on the castings to be broken off one by one by the pressing mechanism 50. This simplifies the overall structure and reduces equipment costs. Simultaneously, the pressing mechanism 50 can also remove the castings with removed risers from the rotary table 30, making room for the next casting, achieving two goals at once. Furthermore, a feeding mechanism 40 is designed as an auxiliary feeding structure between the feeding conveyor 20 and the rotary table 30. This ensures that the castings are accurately transferred from the feeding conveyor 20 to the rotary table 30, guaranteeing that they can be pressed off by the pressing mechanism 50 later. The casting riser removal line adopts an assembly line processing method, suitable for automated production and reducing labor intensity.

[0030] Reference Figure 1 and Figure 2 As shown, a worktable 12 is provided on the end of the frame 10 at the discharge end of the feeding conveyor 20. The worktable 12 has mounting holes 13, and a rotary table 30 is rotatably mounted within the mounting holes 13. The table surface of the worktable 12 is coplanar with the top surface of the rotary table 30. The main purpose of the worktable 12 is to accommodate the gap between the rotary table 30 and the feeding conveyor 20, and also to prevent castings from falling off the rotary table 30. A motor (not shown in the attached figure) is provided on the frame 10 to drive the rotary table 30. A certain gap exists between the outer periphery of the rotary table 30 and the inner wall of the mounting hole 13, mainly to facilitate the falling of casting debris and prevent it from getting stuck in the gap.

[0031] Furthermore, in order to facilitate the transfer of the casting from the discharge end of the feeding conveyor 20 to the rotary table 30, a roller 14 is rotatably mounted on the worktable 12 near the discharge end of the feeding conveyor 20. The roller 14 facilitates the feeding mechanism 40 to push the casting from the discharge end of the feeding conveyor 20 to the rotary table 30.

[0032] Furthermore, a number of drop holes 15 are provided on the side of the worktable 12 away from the top pressing mechanism 50. The diameter of any drop hole 15 is smaller than the diameter of the casting. In this way, when the top pressing mechanism 50 pushes the casting with the riser removed out of the rotary table 30, it will also push the dropped riser along with it. When the riser is pushed to the drop hole 15, it can be discharged downward from the drop hole 15, keeping the entire worktable 12 clean and not affecting the processing of the next casting.

[0033] Furthermore, in order to prevent the casting from being pushed out of the worktable 12 by the pressing mechanism 50, a limit stop 16 is provided on the end of the worktable 12 away from the pressing mechanism 50.

[0034] Reference Figure 1 and Figure 3 As shown, in order to better and more accurately transfer the casting from the feeding conveyor 20 to the rotary table 30, the feeding mechanism 40 includes a mounting bracket 41, a feeding cylinder 42 mounted on the mounting bracket 41, and a sliding seat 43 slidably mounted on the mounting bracket 41. The mounting bracket 41 is located at the output end of the frame 10 of the feeding conveyor 20. The telescopic end of the feeding cylinder 42 is hinged to the sliding seat 43. A push arm 44 is hinged on the sliding seat 43. The push arm 44 can swing relative to the sliding seat 43 along the extension direction of the feeding cylinder 42. A limit block 45 is provided on the sliding seat 43. The limit block 45 can restrict the push arm 44 from swinging from the vertical position to the horizontal position of the feeding cylinder 42 mounting end.

[0035] Furthermore, the push arm 44 can only swing between a vertical position and a horizontal position at the extension end of the feeding cylinder 42. This is mainly to allow the push arm 44 to avoid the casting. When the casting is conveyed forward by the feeding conveyor 20, the outer wall of the casting can push the push arm 44 to swing, thus allowing the casting to continue to be conveyed forward. After the casting passes directly under the push arm 44, the push arm 44 naturally droops due to its own weight. At this time, the feeding cylinder 42 extends and drives the push arm 44 to move outward. The push arm 44 then pushes the outer wall of the casting forward, thus transferring the casting from the feeding conveyor 20 to the rotary table 30. It should be noted that there is a speed difference between the feeding conveyor 20 and the feeding cylinder 42 during this process, and the extension speed of the feeding cylinder 42 is greater than the conveying speed of the feeding conveyor 20.

[0036] Furthermore, in order to facilitate the casting to push the push arm 44 to swing through the area where the push arm 44 is located, a guide arc surface 46 is provided on the side of the lower end of the push arm 44 near the end where the feeding cylinder 42 is installed. The design of the guide arc surface 46 is mainly to facilitate the push arm 44 to slide relative to the surface of the casting, while avoiding the corners of the push arm 44 from scratching the outer wall of the casting.

[0037] Furthermore, to improve the level of automation, a first position sensor 47 is installed on the mounting bracket 41. The first position sensor 47 is located in the area where the sliding seat 43 is located after the feeding cylinder 42 has reached its limit of retraction. The air supply device connected to the feeding cylinder 42 is electrically connected to the first position sensor 47. It is a conventional technique for the first position sensor 47 to detect an object before driving the feeding cylinder 42, which will not be detailed here. The control principle can be found in CN202010319749.8 - System and method for feedback cylinder extension and retraction to target position in special environments. The overall structure can be found in CN202020894822.X - Control system composed of position sensor, cylinder, and PLC programmable controller in cigarette pack missing box detection device, which will not be detailed here.

[0038] Reference Figures 1 to 4As shown, to better break the riser, the pressing mechanism 50 includes a hinged seat 51, a pressing cylinder 52, and a pressing head 53 disposed on the extension end of the pressing cylinder 52. The hinged seat 51 is disposed on the frame 10, and the mounting end of the pressing cylinder 52 is hinged to the hinged seat 51. A portion of the side of the pressing cylinder 52 rests on the frame 10. A limit stop 16 is provided on the end of the frame 10 away from the pressing cylinder 52. The pressing cylinder 52 can push the casting on the rotary table 30 and press it against the limit stop 16 through the pressing head 53 until the riser is broken. The design of the pressing cylinder 52 relies on the characteristic that the internal hydraulic oil is difficult to compress. When the pressing cylinder 52 extends, it can break the riser. It should be further explained that, in this application, the connection between the riser and the casting is generally designed with a pre-fracture or weak point during casting to facilitate the later breaking or propping of the riser. This is a conventional design in the casting field, and its reiteration here is only to illustrate how the top-pressure cylinder 52 breaks the riser during actual operation. More specifically, the limit stop 16 is located at the end of the worktable 12 away from the top-pressure cylinder 52, which facilitates coordination with the action of the top-pressure cylinder 52.

[0039] To achieve automated control, a second position sensor 17 is installed on the frame 10 above the rotary table 30. The second position sensor 17 is electrically connected to the pressing mechanism 50. By setting the second position sensor 17, it is beneficial to automatically position the casting, and the riser can be removed without manual operation. Furthermore, the second position sensor 17 is electrically connected to the pressing cylinder 52. The control principle and control method between the second position sensor 17 and the pressing cylinder 52 can be found in patents CN201811417443.5 - Control system, method and engineering machinery for telescopic cylinders or CN201811417470.2 - Telescopic cylinder, control system and engineering machinery. These are conventional technical means, and will not be described in detail here.

[0040] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A riser removal line for castings, characterized in that, include: Rack (10); A feeding conveyor (20), which is installed on the frame (10), is used to convey castings; A rotary table (30) is mounted on the frame (10); The feeding mechanism (40), which is mounted on the frame (10), is used to feed the castings conveyed by the feeding conveyor (20) into the rotary table (30); A pressing mechanism (50) is mounted on the frame (10) and is capable of breaking the riser on the casting on the rotary table (30).

2. The casting riser removal line according to claim 1, characterized in that, The top-pressing mechanism (50) includes a hinge seat (51), a top-pressing cylinder (52), and a top-pressing head (53) disposed on the telescopic end of the top-pressing cylinder (52). The hinge seat (51) is disposed on the frame (10). The mounting end of the top-pressing cylinder (52) is hinged to the hinge seat (51). A portion of the side of the top-pressing cylinder (52) rests on the frame (10). A limit stop (16) is provided on the end of the frame (10) away from the top-pressing cylinder (52). The top-pressing cylinder (52) can push the casting on the rotary table (30) and press it against the limit stop (16) through the top-pressing head (53) until the riser is broken.

3. A casting riser removal line according to claim 2, characterized in that, The frame (10) is provided with a support base (11) for supporting the outer wall of the top pressure cylinder (52) near the top pressure head (53).

4. A casting riser removal line according to claim 1, characterized in that, The feeding mechanism (40) includes a mounting bracket (41), a feeding cylinder (42) mounted on the mounting bracket (41), and a sliding seat (43) slidably mounted on the mounting bracket (41). The mounting bracket (41) is located at the end of the frame (10) at the output of the feeding conveyor (20). The telescopic end of the feeding cylinder (42) is hinged to the sliding seat (43). A push arm (44) is hinged on the sliding seat (43). The push arm (44) can swing relative to the sliding seat (43) along the extension direction of the feeding cylinder (42). A limit block (45) is provided on the sliding seat (43). The limit block (45) can restrict the push arm (44) from swinging from the vertical position to the horizontal position at the mounting end of the feeding cylinder (42).

5. A casting riser removal line according to claim 4, characterized in that, The lower end of the push arm (44) is provided with a guide arc surface (46) on the side near the end of the feeding cylinder (42) where it is installed.

6. A casting riser removal line according to claim 4, characterized in that, The mounting bracket (41) is provided with a first position sensor (47), which is located in the area where the sliding seat (43) is located after the feeding cylinder (42) has reached its limit contraction. The air supply device connected to the feeding cylinder (42) is electrically connected to the first position sensor (47).

7. A casting riser removal line according to claim 2, characterized in that, The frame (10) is provided with a worktable (12) at the end of the material conveying device (20) where the material is discharged. The worktable (12) is provided with a mounting hole (13). The rotating table (30) is rotatably installed in the mounting hole (13). The table surface of the worktable (12) and the top surface of the rotating table (30) are coplanar. The limiting stop (16) is provided at the end of the worktable (12) away from the top pressure cylinder (52).

8. A casting riser removal line according to claim 7, characterized in that, A roller (14) is rotatably mounted on the end of the workbench (12) near the material discharge end of the feeding conveyor (20).

9. A casting riser removal line according to claim 7, characterized in that, The workbench (12) is provided with a plurality of drop holes (15) on the side away from the top pressing mechanism (50), and the diameter of any drop hole (15) is smaller than the diameter of the casting.

10. A casting riser removal line according to claim 1, characterized in that, The frame (10) is positioned above the rotary table (30) and a second position sensor (17) is provided. The second position sensor (17) is electrically connected to the top pressing mechanism (50).

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