A conveying device for casting automobile parts

Abstract

This invention discloses a conveying device for casting automotive parts, relating to the field of conveyor belt technology. It includes: a support base as a load-bearing support structure; a conveying assembly mounted on the support base for continuous conveying of workpieces; a spray cleaning chamber fixedly mounted on top of the support base for spray cleaning of workpieces passing through it; and a drying chamber fixedly mounted on top of the support base and located downstream of the spray cleaning chamber along the conveying direction for drying the cleaned workpieces. This invention, by creating a long drainage trough below the spray cleaning chamber on the support base and configuring an inclined guide funnel, allows the cleaning fluid carrying molding sand and impurities to quickly fall through the gaps between the conveyor rollers and flow downstream into the wastewater treatment system via the guide funnel. This effectively prevents the cleaning fluid from accumulating at the bottom of the equipment and overflowing into the drying area, preventing secondary contamination of the workpieces during the drying process and ensuring cleaning quality.

Description

Technical Field

[0001] This invention relates to the field of conveyor belt technology, specifically a conveying device for casting automotive parts. Background Technology

[0002] After casting, automotive parts often have a large amount of molding sand, oxide scale, and release agent residues adhering to their surfaces and interiors. Therefore, they must undergo rigorous cleaning and drying processes before proceeding to the next machining or surface treatment step. Traditional casting conveyor equipment typically connects conveying, cleaning, and drying as independent stations in series. The workpiece moves only in one direction on the conveyor line, completing the cleaning operation by sequentially passing through a spray zone and a baking zone. In this process, the spraying mechanism is responsible for rinsing the workpiece surface, the drying mechanism is responsible for evaporating residual moisture, and the conveyor belt is responsible for the workpiece transfer task. These three components work together to form the basic casting assembly line cleaning system.

[0003] However, in existing conveying equipment, the workpieces are usually in a static, flat state during the cleaning and drying process. This makes it difficult for the cleaning fluid to reach the bottom, inner holes, and dead corners of the workpieces, easily leading to incomplete cleaning and uneven drying. Turning the workpieces over often requires stopping the machine and using a robotic arm or manual intervention, which not only increases equipment costs and labor intensity but also significantly reduces production cycle time. Furthermore, the waste fluid after cleaning easily accumulates at the bottom of the conveyor line, causing secondary contamination of the workpieces. Existing conveying equipment cannot simultaneously achieve automatic and continuous reciprocating turning movements while continuously transporting workpieces horizontally, making it difficult to balance the needs of efficient conveying with comprehensive, dead-angle-free cleaning. Summary of the Invention

[0004] Technical problems to be solved Existing conveying equipment cannot achieve automatic reciprocating rotation while continuously conveying workpieces horizontally, resulting in dead corners for cleaning and uneven drying of workpieces, and waste liquid is prone to accumulating and causing secondary pollution.

[0005] Technical solution To achieve the above objectives, the present invention provides the following technical solution: a conveying device for casting automotive parts, comprising: The supporting base serves as a load-bearing support structure. A conveying assembly, mounted on the support base, is used for continuous conveying of workpieces; The spray cleaning chamber is fixedly mounted on the top of the support base and is used to spray and clean the workpieces passing through it. The drying chamber is fixedly mounted on the top of the support base and located downstream of the spray washing chamber along the conveying direction, and is used to dry the cleaned workpieces. A flipping assembly, mounted on the support base, is used to flip workpieces located inside the spray washing chamber and the drying chamber; and The swing component is mounted on the support base and is in transmission cooperation with the flipping component to drive the flipping component to reciprocate and flip the workpiece.

[0006] Furthermore, the support base includes: A pair of opposing and parallel support plates, with the side walls of the spray washing chamber and the drying chamber fixedly installed on the top of the two support plates; A connecting horizontal plate is fixedly connected laterally between the two support plates to enhance the overall structural stability of the support base.

[0007] Furthermore, the transmission component includes: Multiple conveyor rollers are evenly arranged in a U-shaped array, with their two ends rotatably positioned between the two support plates, for carrying and conveying the workpiece forward; A pair of annular control belts are respectively arranged around the opposite inner sides of the two support plates, and the shaft end of the conveyor roller extends rotatably into the interior of the corresponding control belt; A pair of connecting chains are respectively sandwiched between the shaft end of the conveyor roller shaft and the control belt. The end of the conveyor roller shaft moves through the connecting chains so that the connecting chains move with the cyclic operation of the control belt, thereby dragging the entire conveyor roller shaft to move horizontally. A pair of control components are respectively disposed on the two support plates and located inside the control belt to provide power to drive the control belt to circulate.

[0008] Furthermore, the control element includes: A swivel rod is laterally and rotatably connected between the two support plates; A pair of transmission wheels are coaxially fixedly sleeved on the rotating rod, and their outer peripheral walls are in contact with the inner side of the control belt; A servo motor is fixedly installed on the outer wall of one of the support plates, and its output end is coaxially connected to the end of one of the rotating rods. The control belt on the same side is tensioned between the two transmission wheels to form a chain belt drive structure.

[0009] Furthermore, the flipping component includes: Gears are fixedly sleeved on the shaft end of each of the conveyor rollers and move synchronously with the conveyor rollers. A rack extends along the length of the support plate and is connected to the swing assembly; the rack and the gear are engaged. The swing assembly drives the rack to reciprocate along the length of the support plate, causing the gear that moves with the conveying assembly to rotate due to its relative meshing motion with the rack, thereby turning the conveying roller shaft and causing the workpiece it carries to flip over.

[0010] Furthermore, the swing assembly includes: A pair of swinging members are respectively disposed on the support plates below the spray washing chamber and the drying chamber, and their top ends are fixedly connected to the rack to drive the rack to reciprocate. A linkage component is provided on the support plate to link the two swinging components to maintain synchronous operation.

[0011] Furthermore, the swing element includes: The movable plate has its two ends slidably engaged with the vertically opened notches in the support plate, and the rack is fixedly attached to the top of the movable plate; The guide rods are divided into two groups and are fixedly connected to both sides of the movable plate. The guide rods are movably inserted into the inner wall of the notch to guide the movable plate to slide smoothly in the horizontal direction.

[0012] Furthermore, the swing element also includes: The guide frame has its top end fixedly connected to the bottom end of the movable plate, and its bottom end slides against the top end of the connecting horizontal plate to provide vertical support. The drive disc is rotatably connected to the support plate via a rotating shaft; The drive column is eccentrically fixed to the non-axial position on the front side of the drive disk, and the outer wall of the drive column is movably engaged with the inner sliding groove of the guide frame. When the drive disc rotates, the eccentrically positioned drive column performs a circular motion and moves the guide frame to slide back and forth in a horizontal straight line, thereby driving the rack to move back and forth through the moving plate.

[0013] Furthermore, the linkage component includes: Synchronous pulleys are respectively fixedly sleeved on the shaft of each of the drive discs; A timing belt is wrapped around the two timing pulleys to form a transmission structure, so that when one of the drive discs rotates, it drives the other drive disc to rotate synchronously through the cooperation of the timing belt and the timing pulley.

[0014] Furthermore, the swing assembly also includes: Servo motor 2 is fixedly installed on the outer wall of one of the support plates, and its output end is connected to the end of the shaft of one of the drive disks to serve as the power source for the swing assembly.

[0015] Compared with existing technologies, this conveying equipment for casting automotive parts has the following advantages: I. This invention creates a long trough for water to fall into the spray chamber below the support base and configures an inclined guide funnel, so that the cleaning liquid carrying molding sand and impurities can fall quickly through the gap between the conveyor rollers and flow into the sewage treatment system through the guide funnel. This effectively prevents the cleaning liquid from accumulating at the bottom of the equipment and overflowing into the drying area, preventing secondary pollution of the workpiece during the drying process and ensuring the cleaning quality.

[0016] Second, this invention sets up a flipping component and a swing component composed of gears, racks and swinging parts. By using the relative meshing motion between the moving gears and the reciprocating racks, the conveyor roller shaft can be forced to rotate while dragging the workpiece forward at a constant speed. This realizes the continuous automatic flipping of the workpiece in motion without the need for manual or robotic intervention, which greatly improves the production cycle and automation level.

[0017] Third, by keeping the workpiece in a reciprocating tumbling state in the spray washing chamber and drying chamber, the present invention can thoroughly expose the bottom, inner hole and dead corner of the workpiece. High pressure water can wash without dead corners and throw off residual sand with the help of centrifugal force of tumbling. Hot air can also blow evenly on all surfaces of the workpiece, eliminating the cleaning dead corners and drying blind spots caused by traditional static conveying, and significantly improving the cleanliness and drying efficiency of complex castings such as automobile brake discs. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention excluding the spray washing chamber and the drying chamber; Figure 3 This is a schematic diagram of the present invention without the supporting base structure; Figure 4 This is a schematic diagram of the swing component structure of the present invention; Figure 5 For the present invention Figure 4 Another perspective structural diagram; Figure 6 This is an exploded view of the structural conveying component of the present invention.

[0019] In the diagram: 1. Conveying assembly; 101. Conveying roller shaft; 102. Control belt; 103. Connecting chain belt; 104. Rotating rod; 105. Conveying wheel; 106. Servo motor one; 2. Spraying chamber; 3. Drying chamber; 4. Tilting assembly; 401. Gear; 402. Rack; 5. Swinging assembly; 501. Moving plate; 502. Guide rod; 503. Guide frame; 504. Drive disc; 505. Drive column; 506. Synchronous pulley; 507. Synchronous belt; 508. Servo motor two; 6. Support plate; 7. Connecting cross plate; 8. Notch. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figure 1-6 As shown, the present invention provides a technical solution: a conveying device for casting automotive parts. This device is installed on the casting production line of automotive parts and is used to continuously convey casting workpieces that have just been demolded. During the conveying process, spray cleaning and drying are carried out sequentially. Taking automotive brake discs as an example, a large amount of molding sand and release agent remain on the surface and in the heat dissipation holes of the newly cast brake discs. If not cleaned properly, it will seriously affect the subsequent machining and painting quality. The core advantage of this device is that through ingenious structural linkage, the brake discs can automatically reciprocate during the cleaning and drying process, thereby flushing out the residual sand in the heat dissipation holes, eliminating cleaning dead corners, and improving the uniformity of drying. At the same time, the device can smoothly convey castings of different specifications and perfectly avoid mechanical interference in the compound motion. The conveying device mainly includes a support base, a conveying component 1, a spray cleaning chamber 2, a drying chamber 3, a tilting component 4, and a swinging component 5.

[0022] The support base, as the load-bearing support structure of the entire equipment, mainly includes a pair of opposing and parallel support plates 6, and a connecting plate 7 that is horizontally fixed between the two support plates 6. The connecting plate 7 greatly enhances the overall structural stability of the support base. At the top of the two support plates 6, a spray washing chamber 2 and a drying chamber 3 are fixedly mounted. In particular, a vertically continuous drainage trough is opened in the section of the support plate 6 directly below the spray washing chamber 2. An inclined guide funnel (not shown) is set below the support base at the position corresponding to the drainage trough. The bottom of the guide funnel is connected to the workshop's sewage treatment circulation system through a drainage pipe. When the brake disc is subjected to high-pressure spray washing, the cleaning liquid carrying molding sand and impurities falls directly through the gap between the conveyor rollers 101, collects in the guide funnel through the drainage trough, and flows into the sewage treatment system, thereby effectively preventing the cleaning liquid from accumulating at the bottom of the equipment and overflowing into the drying area, causing secondary pollution.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 6As shown, a conveying assembly 1 is provided on the support base for continuous conveying of the brake disc. The core of the conveying assembly 1 includes multiple conveying rollers 101, which are evenly arranged in a U-shaped array. Their ends are rotatably positioned between two support plates 6. The brake disc is placed above the conveying rollers 101 and is conveyed forward. To achieve orderly movement of the conveying rollers 101, a pair of annular control belts 102 are respectively arranged around the inner sides of the two support plates 6. The shaft ends of the conveying rollers 101 rotatably extend into the interior of the corresponding control belts 102. A pair of connecting chains 103 are sandwiched between the shaft end of the roller 101 and the control belt 102. The end of the conveyor roller 101 moves through the connecting chains 103. When the control belt 102 is running in a cycle, it will drag the connecting chains 103 to move together, thereby driving the conveyor roller 101 that is inserted thereto to move in a line. The running power of the control belt 102 is provided by the control components, which include a rotating rod 104, a conveyor wheel 105 and a servo motor 106. The servo motor 106 drives the rotating rod 104 and the conveyor wheel 105 to rotate, thereby driving the control belt 102 to rotate in a cycle.

[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in order to ensure that the brake disc can be thoroughly cleaned and dried inside the spray washing chamber 2 and the drying chamber 3, the equipment is equipped with a flipping component 4 and a swinging component 5. The flipping component 4 includes a gear 401 fixedly sleeved on the shaft end of each conveyor roller shaft 101, and a rack 402 extending along the length direction of the support plate 6. The gear 401 moves synchronously with the conveyor roller shaft 101 and always maintains a meshing state with the rack 402.

[0025] It is important to note here that, in achieving the combined motion of translation and rotation, this device avoids motion interference through rigorous kinematic design: the conveyor roller 101 moves forward at a uniform speed with the control belt 102, with a translational speed of V1; simultaneously, the swing assembly 5 drives the rack 402 to perform reciprocating linear motion along the length of the support plate 6. Since the reciprocating trajectory of the rack 402 is parallel to the forward trajectory of the conveyor roller 101, the rack 402 only needs to slide in a single direction in the horizontal plane to provide meshing force, and the two do not intersect each other in spatial motion trajectories. Furthermore, the shaft end of the conveyor roller 101 moves through the connecting chain 103. The bore of the connecting chain 103 is reserved with sufficient radial clearance. This clearance not only allows the conveyor roller 101 to deflect and rotate freely during translation, but also allows the relative tangential speed at the meshing point of the gear 401 and the rack 402 to change dynamically. This ensures that while the gear 401 moves forward at a constant speed with the connecting chain 103, it can be smoothly rotated by the reciprocating rack 402. The entire transmission process is smooth and without jamming, perfectly avoiding spatial and dynamic interference between translation and rotation.

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the core function of the oscillating assembly 5 is to convert rotational motion into reciprocating linear motion of the rack 402. It includes a pair of oscillating components and a linkage component. The pair of oscillating components are respectively positioned on the support plates 6 below the spray washing chamber 2 and the drying chamber 3, with their top ends fixedly connected to the rack 402. The oscillating components mainly include a movable plate 501, with both ends of the movable plate 501 slidably engaged with the vertically opened notches 8 in the support plate 6. The rack 402 is fixedly attached to the top of the movable plate 501. Guide rods 502 are fixedly connected to both sides of the movable plate 501, and the guide rods 502 movably insert into the inner wall of the notches 8, guiding the movable plate 501 along the horizontal direction. The guide frame 503 is fixedly connected to the bottom end of the moving plate 501 and slides smoothly. The bottom end of the guide frame 503 slides against the top end of the connecting horizontal plate 7 to provide vertical support. The drive plate 6 is rotatably connected to the drive plate 504 via a rotating shaft. The drive column 505 is eccentrically fixedly connected to the front non-axial position of the drive plate 504. The outer wall of the drive column 505 is movably engaged with the inner sliding groove of the guide frame 503. When the drive plate 504 rotates, the eccentrically positioned drive column 505 makes a circular motion, which moves the guide frame 503 to reciprocate linearly in the horizontal direction, thereby driving the rack 402 to move back and forth through the moving plate 501.

[0027] In order to achieve synchronous operation of the two sets of swing components below the spray washing chamber 2 and the drying chamber 3, the equipment is equipped with a linkage component. The linkage component includes a synchronous wheel 506 that is fixedly sleeved on the rotating shaft of each drive disc 504, and a synchronous belt 507 that is sleeved around the two synchronous wheels 506. When one drive disc 504 rotates, it will drive the other drive disc 504 to rotate synchronously through the cooperation of the synchronous belt 507 and the synchronous wheel 506. The power source of the swing component 5 is a servo motor 508 that is fixedly installed on the outer wall of one of the support plates 6.

[0028] Working process: After the equipment is started, servo motor 106 drives the conveyor roller 101 to lift the car brake disc and move it downstream. When the brake disc enters the spray washing chamber 2, high-pressure water flows to wash the surface and inner hole of the brake disc. At this time, servo motor 508 starts synchronously. Through the cooperation of drive disc 504 and guide frame 503, it drives rack 402 to move back and forth. The gear 401 moves forward and rotates due to relative meshing. This drives the conveyor roller 101 and brake disc to continuously rotate during the movement. The cleaning liquid mixed with molding sand is thrown out by the centrifugal force of the brake disc rotating and discharged through the gap of the roller and the long water trough and guide funnel. When the brake disc enters the drying chamber 3 with the conveyor belt, it also maintains the reciprocating rotating state. Hot air blows evenly on all surfaces and inner holes of the brake disc to achieve fast drying without dead angles. When the brake disc is removed from the drying chamber 3, gear 401 and rack 402 disengage. The brake disc stops rotating and is smoothly transported to the unloading station, completing the entire cleaning and drying operation.

[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A conveying device for casting automotive parts, characterized in that, include: The supporting base serves as a load-bearing support structure. A conveying assembly (1) is disposed on the support base for continuously conveying the workpiece; The spray cleaning chamber (2) is fixedly mounted on the top of the support base and is used to spray and clean the workpieces passing through it. The drying chamber (3) is fixedly mounted on the top of the support base and located downstream of the spray washing chamber (2) along the conveying direction, and is used to dry the cleaned workpiece. A flipping assembly (4) is provided on the support base for flipping the workpiece inside the spray washing chamber (2) and the drying chamber (3); as well as The swing component (5) is mounted on the support base and is in transmission cooperation with the flipping component (4) to drive the flipping component (4) to drive the workpiece to reciprocate flipping.

2. The conveying equipment for casting automotive parts according to claim 1, characterized in that, The support base includes: A pair of opposing and parallel support plates (6), the side walls of the spray washing chamber (2) and the drying chamber (3) are fixedly installed on the top of the two support plates (6); A connecting horizontal plate (7) is horizontally fixed between the two support plates (6) to enhance the overall structural stability of the support base.

3. The conveying equipment for casting automotive parts according to claim 2, characterized in that, The transmission component (1) includes: Multiple conveyor rollers (101) are evenly arranged in a U-shaped array, and their two ends are respectively rotatably set between the two support plates (6) for carrying and conveying the workpiece forward; A pair of annular control belts (102) are respectively arranged around the opposite inner sides of the two support plates (6), and the shaft end of the conveyor roller shaft (101) extends rotatably into the interior of the corresponding control belt (102); A pair of connecting chains (103) are respectively sandwiched between the shaft end of the conveyor roller shaft (101) and the control belt (102). The end of the conveyor roller shaft (101) moves through the connecting chains (103) so that the connecting chains (103) move with the cyclic operation of the control belt (102), thereby dragging the conveyor roller shaft (101) to move along with it. A pair of control elements are respectively disposed on the two support plates (6) and located inside the control belt (102) to provide power to drive the control belt (102) to circulate.

4. The conveying equipment for casting automotive parts according to claim 3, characterized in that, The control component includes: A swivel rod (104) is laterally and rotatably connected between the two support plates (6); A pair of transmission wheels (105) are coaxially fixedly sleeved on the rotating rod (104), and their outer peripheral walls are in contact with the inner side of the control belt (102); Servo motor 1 (106) is fixedly installed on the outer side wall of one of the support plates (6), and its output end is coaxially connected to the end of one of the rotating rods (104). The control belt (102) on the same side is tensioned between the two transmission wheels (105) to form a chain drive structure.

5. A conveying device for casting automotive parts according to claim 3, characterized in that, The flipping component (4) includes: Gear (401) is fixedly sleeved on the shaft end of each of the conveyor roller shafts (101) and moves synchronously with the conveyor roller shafts (101); A rack (402) extends along the length of the support plate (6) and is connected to the swing assembly (5). The rack (402) and the gear (401) are engaged. The swing assembly (5) drives the rack (402) to reciprocate along the length of the support plate (6), causing the gear (401) that moves with the conveying assembly (1) to rotate due to the relative meshing motion with the rack (402), thereby realizing the flipping of the conveying roller shaft (101) and causing the workpiece carried on it to flip over.

6. A conveying device for casting automotive parts according to claim 5, characterized in that, The swing assembly (5) includes: A pair of swinging members are respectively disposed on the support plate (6) below the spray washing chamber (2) and the drying chamber (3), and their top ends are fixedly connected to the rack (402) to drive the rack (402) to reciprocate; A linkage component is provided on the support plate (6) to link the two swing components to maintain synchronous operation.

7. A conveying device for casting automotive parts according to claim 6, characterized in that, The swing element includes: The movable plate (501) has its two ends slidably engaged with the notches (8) vertically opened in the support plate (6), and the rack (402) is fixedly attached to the top of the movable plate (501); The guide rods (502) are divided into two groups and are fixedly connected to both sides of the movable plate (501). The guide rods (502) are movably inserted into the inner wall of the notch (8) to guide the movable plate (501) to slide smoothly in the horizontal direction.

8. A conveying device for casting automotive parts according to claim 2 or 7, characterized in that, The swing element also includes: The guide frame (503) is fixedly connected at its top end to the bottom end of the movable plate (501), and its bottom end slides against the top end of the connecting horizontal plate (7) to provide vertical support. The drive disc (504) is rotatably connected to the support plate (6) via a rotating shaft; The drive column (505) is eccentrically fixed to the non-axial position on the front side of the drive disk (504), and the outer wall of the drive column (505) is movably engaged with the inner sliding groove of the guide frame (503). When the drive disk (504) rotates, the eccentrically positioned drive column (505) makes a circular motion and moves the guide frame (503) to slide back and forth in a straight line in the horizontal direction, thereby driving the rack (402) to move back and forth through the moving plate (501).

9. A conveying device for casting automotive parts according to claim 8, characterized in that, The linkage component includes: Synchronous pulleys (506) are respectively fixedly sleeved on the shaft of each of the drive discs (504); A timing belt (507) is wrapped around the two timing pulleys (506) to form a transmission structure, so that when one of the drive discs (504) rotates, it drives the other drive disc (504) to rotate synchronously through the cooperation of the timing belt (507) and the timing pulley (506).

10. A conveying device for casting automotive parts according to claim 9, characterized in that, The swing assembly (5) also includes: Servo motor 2 (508) is fixedly installed on the outer side wall of one of the support plates (6), and its output end is connected to the shaft end of one of the drive disks (504) to serve as the power source of the swing assembly (5).

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